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Finding the Fourth Proportional to 78,765.48, 118,108.80 and 26,156.52

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Solution

The fourth proportional to 78,765.48, 118,108.80 and 26,156.52 is: 39,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,765.48 : 118,108.80 = 26,156.52 : x
  2. Step 2: Convert to fraction form
    78,765.48/118,108.80 = 26,156.52/x
  3. Step 3: Cross multiply
    78,765.48x = 118,108.80 × 26,156.52
  4. Step 4: Simplify right side
    78,765.48x = 3,089,315,189.38
  5. Step 5: Solve for x
    x = 3,089,315,189.38/78,765.48
  6. Step 6: Final answer
    x = 39,221.69

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