Finding the Fourth Proportional to 12,400.25, 17,061.64 and 10,716.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,400.25 : 17,061.64 = 10,716.26 : x
2. Step 2: Convert to fraction form
   12,400.25/17,061.64 = 10,716.26/x
3. Step 3: Cross multiply
   12,400.25x = 17,061.64 × 10,716.26
4. Step 4: Simplify right side
   12,400.25x = 182,836,858.17
5. Step 5: Solve for x
   x = 182,836,858.17/12,400.25
6. Step 6: Final answer
   x = 14,744.62