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Finding the Fourth Proportional to 209,456, 289,047.04 and 124,571.20

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Solution

The fourth proportional to 209,456, 289,047.04 and 124,571.20 is: 171,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,456 : 289,047.04 = 124,571.20 : x
  2. Step 2: Convert to fraction form
    209,456/289,047.04 = 124,571.20/x
  3. Step 3: Cross multiply
    209,456x = 289,047.04 × 124,571.20
  4. Step 4: Simplify right side
    209,456x = 36,006,936,629.25
  5. Step 5: Solve for x
    x = 36,006,936,629.25/209,456
  6. Step 6: Final answer
    x = 171,906.92

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