Finding the Fourth Proportional to 9,709.17, 13,437.15 and 9,476.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,709.17 : 13,437.15 = 9,476.25 : x
2. Step 2: Convert to fraction form
   9,709.17/13,437.15 = 9,476.25/x
3. Step 3: Cross multiply
   9,709.17x = 13,437.15 × 9,476.25
4. Step 4: Simplify right side
   9,709.17x = 127,333,792.69
5. Step 5: Solve for x
   x = 127,333,792.69/9,709.17
6. Step 6: Final answer
   x = 13,114.80