Finding the Fourth Proportional to 9,906.30, 14,830.71 and 7,708.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906.30 : 14,830.71 = 7,708.37 : x
2. Step 2: Convert to fraction form
   9,906.30/14,830.71 = 7,708.37/x
3. Step 3: Cross multiply
   9,906.30x = 14,830.71 × 7,708.37
4. Step 4: Simplify right side
   9,906.30x = 114,320,525.89
5. Step 5: Solve for x
   x = 114,320,525.89/9,906.30
6. Step 6: Final answer
   x = 11,540.18