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Finding the Fourth Proportional to 78,642.02, 108,598.11 and 49,971.13

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Solution

The fourth proportional to 78,642.02, 108,598.11 and 49,971.13 is: 69,005.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,642.02 : 108,598.11 = 49,971.13 : x
  2. Step 2: Convert to fraction form
    78,642.02/108,598.11 = 49,971.13/x
  3. Step 3: Cross multiply
    78,642.02x = 108,598.11 × 49,971.13
  4. Step 4: Simplify right side
    78,642.02x = 5,426,770,272.56
  5. Step 5: Solve for x
    x = 5,426,770,272.56/78,642.02
  6. Step 6: Final answer
    x = 69,005.99

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