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Finding the Fourth Proportional to 78,776.93, 108,711.24 and 42,967.24

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Solution

The fourth proportional to 78,776.93, 108,711.24 and 42,967.24 is: 59,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,776.93 : 108,711.24 = 42,967.24 : x
  2. Step 2: Convert to fraction form
    78,776.93/108,711.24 = 42,967.24/x
  3. Step 3: Cross multiply
    78,776.93x = 108,711.24 × 42,967.24
  4. Step 4: Simplify right side
    78,776.93x = 4,671,021,939.78
  5. Step 5: Solve for x
    x = 4,671,021,939.78/78,776.93
  6. Step 6: Final answer
    x = 59,294.29

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