Finding the Fourth Proportional to 18,057.28, 24,925.31 and 12,410.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,057.28 : 24,925.31 = 12,410.72 : x
2. Step 2: Convert to fraction form
   18,057.28/24,925.31 = 12,410.72/x
3. Step 3: Cross multiply
   18,057.28x = 24,925.31 × 12,410.72
4. Step 4: Simplify right side
   18,057.28x = 309,341,043.32
5. Step 5: Solve for x
   x = 309,341,043.32/18,057.28
6. Step 6: Final answer
   x = 17,131.10