Finding the Fourth Proportional to 9,934.16, 13,687.49 and 7,415.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,934.16 : 13,687.49 = 7,415.25 : x
2. Step 2: Convert to fraction form
   9,934.16/13,687.49 = 7,415.25/x
3. Step 3: Cross multiply
   9,934.16x = 13,687.49 × 7,415.25
4. Step 4: Simplify right side
   9,934.16x = 101,496,123.15
5. Step 5: Solve for x
   x = 101,496,123.15/9,934.16
6. Step 6: Final answer
   x = 10,216.89