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Finding the Fourth Proportional to 79,087.80, 118,631.70 and 26,491.80

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Solution

The fourth proportional to 79,087.80, 118,631.70 and 26,491.80 is: 39,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,087.80 : 118,631.70 = 26,491.80 : x
  2. Step 2: Convert to fraction form
    79,087.80/118,631.70 = 26,491.80/x
  3. Step 3: Cross multiply
    79,087.80x = 118,631.70 × 26,491.80
  4. Step 4: Simplify right side
    79,087.80x = 3,142,767,270.06
  5. Step 5: Solve for x
    x = 3,142,767,270.06/79,087.80
  6. Step 6: Final answer
    x = 39,737.70

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