Finding the Fourth Proportional to 18,498.32, 25,527.72 and 11,423.12

Step by Step Solution

1. Step 1: Write the proportion equation
   18,498.32 : 25,527.72 = 11,423.12 : x
2. Step 2: Convert to fraction form
   18,498.32/25,527.72 = 11,423.12/x
3. Step 3: Cross multiply
   18,498.32x = 25,527.72 × 11,423.12
4. Step 4: Simplify right side
   18,498.32x = 291,606,208.89
5. Step 5: Solve for x
   x = 291,606,208.89/18,498.32
6. Step 6: Final answer
   x = 15,763.93