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Finding the Fourth Proportional to 279,110.16, 418,666.44 and 86,987.04

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Solution

The fourth proportional to 279,110.16, 418,666.44 and 86,987.04 is: 130,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,110.16 : 418,666.44 = 86,987.04 : x
  2. Step 2: Convert to fraction form
    279,110.16/418,666.44 = 86,987.04/x
  3. Step 3: Cross multiply
    279,110.16x = 418,666.44 × 86,987.04
  4. Step 4: Simplify right side
    279,110.16x = 36,418,554,362.94
  5. Step 5: Solve for x
    x = 36,418,554,362.94/279,110.16
  6. Step 6: Final answer
    x = 130,480.93

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