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Finding the Fourth Proportional to 35,387.64, 53,079.72 and 13,199.31

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Solution

The fourth proportional to 35,387.64, 53,079.72 and 13,199.31 is: 19,798.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,387.64 : 53,079.72 = 13,199.31 : x
  2. Step 2: Convert to fraction form
    35,387.64/53,079.72 = 13,199.31/x
  3. Step 3: Cross multiply
    35,387.64x = 53,079.72 × 13,199.31
  4. Step 4: Simplify right side
    35,387.64x = 700,615,678.99
  5. Step 5: Solve for x
    x = 700,615,678.99/35,387.64
  6. Step 6: Final answer
    x = 19,798.32

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