Finding the Fourth Proportional to 71,443.50, 107,165.29 and 21,523.61

Step by Step Solution

1. Step 1: Write the proportion equation
   71,443.50 : 107,165.29 = 21,523.61 : x
2. Step 2: Convert to fraction form
   71,443.50/107,165.29 = 21,523.61/x
3. Step 3: Cross multiply
   71,443.50x = 107,165.29 × 21,523.61
4. Step 4: Simplify right side
   71,443.50x = 2,306,583,800.02
5. Step 5: Solve for x
   x = 2,306,583,800.02/71,443.50
6. Step 6: Final answer
   x = 32,285.42