Finding the Fourth Proportional to 62,443.52, 86,145.90 and 40,938.42

Step by Step Solution

1. Step 1: Write the proportion equation
   62,443.52 : 86,145.90 = 40,938.42 : x
2. Step 2: Convert to fraction form
   62,443.52/86,145.90 = 40,938.42/x
3. Step 3: Cross multiply
   62,443.52x = 86,145.90 × 40,938.42
4. Step 4: Simplify right side
   62,443.52x = 3,526,677,035.48
5. Step 5: Solve for x
   x = 3,526,677,035.48/62,443.52
6. Step 6: Final answer
   x = 56,477.87