Finding the Fourth Proportional to 12,086.88, 18,162.72 and 10,562.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.88 : 18,162.72 = 10,562.96 : x
2. Step 2: Convert to fraction form
   12,086.88/18,162.72 = 10,562.96/x
3. Step 3: Cross multiply
   12,086.88x = 18,162.72 × 10,562.96
4. Step 4: Simplify right side
   12,086.88x = 191,852,084.85
5. Step 5: Solve for x
   x = 191,852,084.85/12,086.88
6. Step 6: Final answer
   x = 15,872.75