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Finding the Fourth Proportional to 391,136.84, 586,700.30 and 124,893.98

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Solution

The fourth proportional to 391,136.84, 586,700.30 and 124,893.98 is: 187,339.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,136.84 : 586,700.30 = 124,893.98 : x
  2. Step 2: Convert to fraction form
    391,136.84/586,700.30 = 124,893.98/x
  3. Step 3: Cross multiply
    391,136.84x = 586,700.30 × 124,893.98
  4. Step 4: Simplify right side
    391,136.84x = 73,275,335,534.19
  5. Step 5: Solve for x
    x = 73,275,335,534.19/391,136.84
  6. Step 6: Final answer
    x = 187,339.39

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