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Finding the Fourth Proportional to 13,238.22, 19,859.76 and 4,923.98

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Solution

The fourth proportional to 13,238.22, 19,859.76 and 4,923.98 is: 7,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.22 : 19,859.76 = 4,923.98 : x
  2. Step 2: Convert to fraction form
    13,238.22/19,859.76 = 4,923.98/x
  3. Step 3: Cross multiply
    13,238.22x = 19,859.76 × 4,923.98
  4. Step 4: Simplify right side
    13,238.22x = 97,788,961.75
  5. Step 5: Solve for x
    x = 97,788,961.75/13,238.22
  6. Step 6: Final answer
    x = 7,386.87

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