Finding the Fourth Proportional to 18,499, 25,529.16 and 10,116.04

Step by Step Solution

1. Step 1: Write the proportion equation
   18,499 : 25,529.16 = 10,116.04 : x
2. Step 2: Convert to fraction form
   18,499/25,529.16 = 10,116.04/x
3. Step 3: Cross multiply
   18,499x = 25,529.16 × 10,116.04
4. Step 4: Simplify right side
   18,499x = 258,254,003.73
5. Step 5: Solve for x
   x = 258,254,003.73/18,499
6. Step 6: Final answer
   x = 13,960.43