Finding the Fourth Proportional to 9,940.88, 14,897.42 and 7,472.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.88 : 14,897.42 = 7,472.82 : x
2. Step 2: Convert to fraction form
   9,940.88/14,897.42 = 7,472.82/x
3. Step 3: Cross multiply
   9,940.88x = 14,897.42 × 7,472.82
4. Step 4: Simplify right side
   9,940.88x = 111,325,738.12
5. Step 5: Solve for x
   x = 111,325,738.12/9,940.88
6. Step 6: Final answer
   x = 11,198.78