Finding the Fourth Proportional to 14,775.98, 20,390.82 and 8,061.61

Step by Step Solution

1. Step 1: Write the proportion equation
   14,775.98 : 20,390.82 = 8,061.61 : x
2. Step 2: Convert to fraction form
   14,775.98/20,390.82 = 8,061.61/x
3. Step 3: Cross multiply
   14,775.98x = 20,390.82 × 8,061.61
4. Step 4: Simplify right side
   14,775.98x = 164,382,838.42
5. Step 5: Solve for x
   x = 164,382,838.42/14,775.98
6. Step 6: Final answer
   x = 11,125.00