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Finding the Fourth Proportional to 247,806.72, 371,678.16 and 79,312.80

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Solution

The fourth proportional to 247,806.72, 371,678.16 and 79,312.80 is: 118,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,806.72 : 371,678.16 = 79,312.80 : x
  2. Step 2: Convert to fraction form
    247,806.72/371,678.16 = 79,312.80/x
  3. Step 3: Cross multiply
    247,806.72x = 371,678.16 × 79,312.80
  4. Step 4: Simplify right side
    247,806.72x = 29,478,835,568.45
  5. Step 5: Solve for x
    x = 29,478,835,568.45/247,806.72
  6. Step 6: Final answer
    x = 118,958.98

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