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Finding the Fourth Proportional to 105,560.84, 145,672.49 and 57,814.18

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Solution

The fourth proportional to 105,560.84, 145,672.49 and 57,814.18 is: 79,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,560.84 : 145,672.49 = 57,814.18 : x
  2. Step 2: Convert to fraction form
    105,560.84/145,672.49 = 57,814.18/x
  3. Step 3: Cross multiply
    105,560.84x = 145,672.49 × 57,814.18
  4. Step 4: Simplify right side
    105,560.84x = 8,421,935,338.26
  5. Step 5: Solve for x
    x = 8,421,935,338.26/105,560.84
  6. Step 6: Final answer
    x = 79,782.76

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