Finding the Fourth Proportional to 11,752.78, 16,205.55 and 7,498.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,752.78 : 16,205.55 = 7,498.15 : x
2. Step 2: Convert to fraction form
   11,752.78/16,205.55 = 7,498.15/x
3. Step 3: Cross multiply
   11,752.78x = 16,205.55 × 7,498.15
4. Step 4: Simplify right side
   11,752.78x = 121,511,644.73
5. Step 5: Solve for x
   x = 121,511,644.73/11,752.78
6. Step 6: Final answer
   x = 10,338.97