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Finding the Fourth Proportional to 13,905.68, 20,858.58 and 4,045.01

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Solution

The fourth proportional to 13,905.68, 20,858.58 and 4,045.01 is: 6,067.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.68 : 20,858.58 = 4,045.01 : x
  2. Step 2: Convert to fraction form
    13,905.68/20,858.58 = 4,045.01/x
  3. Step 3: Cross multiply
    13,905.68x = 20,858.58 × 4,045.01
  4. Step 4: Simplify right side
    13,905.68x = 84,373,060.39
  5. Step 5: Solve for x
    x = 84,373,060.39/13,905.68
  6. Step 6: Final answer
    x = 6,067.53

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