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Finding the Fourth Proportional to 78,779.39, 118,103.01 and 34,372.35

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Solution

The fourth proportional to 78,779.39, 118,103.01 and 34,372.35 is: 51,529.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,779.39 : 118,103.01 = 34,372.35 : x
  2. Step 2: Convert to fraction form
    78,779.39/118,103.01 = 34,372.35/x
  3. Step 3: Cross multiply
    78,779.39x = 118,103.01 × 34,372.35
  4. Step 4: Simplify right side
    78,779.39x = 4,059,478,060.22
  5. Step 5: Solve for x
    x = 4,059,478,060.22/78,779.39
  6. Step 6: Final answer
    x = 51,529.70

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