Finding the Fourth Proportional to 18,490.50, 25,516.98 and 10,107

Step by Step Solution

1. Step 1: Write the proportion equation
   18,490.50 : 25,516.98 = 10,107 : x
2. Step 2: Convert to fraction form
   18,490.50/25,516.98 = 10,107/x
3. Step 3: Cross multiply
   18,490.50x = 25,516.98 × 10,107
4. Step 4: Simplify right side
   18,490.50x = 257,900,116.86
5. Step 5: Solve for x
   x = 257,900,116.86/18,490.50
6. Step 6: Final answer
   x = 13,947.71