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Finding the Fourth Proportional to 78,815.88, 118,198.44 and 26,211.24

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Solution

The fourth proportional to 78,815.88, 118,198.44 and 26,211.24 is: 39,308.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,815.88 : 118,198.44 = 26,211.24 : x
  2. Step 2: Convert to fraction form
    78,815.88/118,198.44 = 26,211.24/x
  3. Step 3: Cross multiply
    78,815.88x = 118,198.44 × 26,211.24
  4. Step 4: Simplify right side
    78,815.88x = 3,098,127,678.47
  5. Step 5: Solve for x
    x = 3,098,127,678.47/78,815.88
  6. Step 6: Final answer
    x = 39,308.42

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