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Finding the Fourth Proportional to 78,869.86, 108,840.97 and 43,060.58

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Solution

The fourth proportional to 78,869.86, 108,840.97 and 43,060.58 is: 59,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,869.86 : 108,840.97 = 43,060.58 : x
  2. Step 2: Convert to fraction form
    78,869.86/108,840.97 = 43,060.58/x
  3. Step 3: Cross multiply
    78,869.86x = 108,840.97 × 43,060.58
  4. Step 4: Simplify right side
    78,869.86x = 4,686,755,295.96
  5. Step 5: Solve for x
    x = 4,686,755,295.96/78,869.86
  6. Step 6: Final answer
    x = 59,423.91

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