Finding the Fourth Proportional to 9,934.64, 13,708.71 and 7,944.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,934.64 : 13,708.71 = 7,944.47 : x
2. Step 2: Convert to fraction form
   9,934.64/13,708.71 = 7,944.47/x
3. Step 3: Cross multiply
   9,934.64x = 13,708.71 × 7,944.47
4. Step 4: Simplify right side
   9,934.64x = 108,908,435.33
5. Step 5: Solve for x
   x = 108,908,435.33/9,934.64
6. Step 6: Final answer
   x = 10,962.49