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Finding the Fourth Proportional to 43,064.64, 64,600.65 and 11,899.89

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Solution

The fourth proportional to 43,064.64, 64,600.65 and 11,899.89 is: 17,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,064.64 : 64,600.65 = 11,899.89 : x
  2. Step 2: Convert to fraction form
    43,064.64/64,600.65 = 11,899.89/x
  3. Step 3: Cross multiply
    43,064.64x = 64,600.65 × 11,899.89
  4. Step 4: Simplify right side
    43,064.64x = 768,740,628.93
  5. Step 5: Solve for x
    x = 768,740,628.93/43,064.64
  6. Step 6: Final answer
    x = 17,850.85

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