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Finding the Fourth Proportional to 209,356.14, 288,986.63 and 124,473

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Solution

The fourth proportional to 209,356.14, 288,986.63 and 124,473 is: 171,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,356.14 : 288,986.63 = 124,473 : x
  2. Step 2: Convert to fraction form
    209,356.14/288,986.63 = 124,473/x
  3. Step 3: Cross multiply
    209,356.14x = 288,986.63 × 124,473
  4. Step 4: Simplify right side
    209,356.14x = 35,971,032,795.99
  5. Step 5: Solve for x
    x = 35,971,032,795.99/209,356.14
  6. Step 6: Final answer
    x = 171,817.42

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