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Finding the Fourth Proportional to 78,044.79, 107,700.93 and 42,234.15

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Solution

The fourth proportional to 78,044.79, 107,700.93 and 42,234.15 is: 58,282.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.79 : 107,700.93 = 42,234.15 : x
  2. Step 2: Convert to fraction form
    78,044.79/107,700.93 = 42,234.15/x
  3. Step 3: Cross multiply
    78,044.79x = 107,700.93 × 42,234.15
  4. Step 4: Simplify right side
    78,044.79x = 4,548,657,232.76
  5. Step 5: Solve for x
    x = 4,548,657,232.76/78,044.79
  6. Step 6: Final answer
    x = 58,282.65

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