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Finding the Fourth Proportional to 78,864.17, 108,642.06 and 67,497.30

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Solution

The fourth proportional to 78,864.17, 108,642.06 and 67,497.30 is: 92,983.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,864.17 : 108,642.06 = 67,497.30 : x
  2. Step 2: Convert to fraction form
    78,864.17/108,642.06 = 67,497.30/x
  3. Step 3: Cross multiply
    78,864.17x = 108,642.06 × 67,497.30
  4. Step 4: Simplify right side
    78,864.17x = 7,333,045,716.44
  5. Step 5: Solve for x
    x = 7,333,045,716.44/78,864.17
  6. Step 6: Final answer
    x = 92,983.24

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