Finding the Fourth Proportional to 18,492.72, 25,513.70 and 10,529.31

Step by Step Solution

1. Step 1: Write the proportion equation
   18,492.72 : 25,513.70 = 10,529.31 : x
2. Step 2: Convert to fraction form
   18,492.72/25,513.70 = 10,529.31/x
3. Step 3: Cross multiply
   18,492.72x = 25,513.70 × 10,529.31
4. Step 4: Simplify right side
   18,492.72x = 268,641,656.55
5. Step 5: Solve for x
   x = 268,641,656.55/18,492.72
6. Step 6: Final answer
   x = 14,526.89