Finding the Fourth Proportional to 23,499.92, 32,433 and 15,140.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.92 : 32,433 = 15,140.72 : x
2. Step 2: Convert to fraction form
   23,499.92/32,433 = 15,140.72/x
3. Step 3: Cross multiply
   23,499.92x = 32,433 × 15,140.72
4. Step 4: Simplify right side
   23,499.92x = 491,058,971.76
5. Step 5: Solve for x
   x = 491,058,971.76/23,499.92
6. Step 6: Final answer
   x = 20,896.20