Finding the Fourth Proportional to 11,510.42, 17,247.17 and 10,403.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,510.42 : 17,247.17 = 10,403.25 : x
2. Step 2: Convert to fraction form
   11,510.42/17,247.17 = 10,403.25/x
3. Step 3: Cross multiply
   11,510.42x = 17,247.17 × 10,403.25
4. Step 4: Simplify right side
   11,510.42x = 179,426,569.29
5. Step 5: Solve for x
   x = 179,426,569.29/11,510.42
6. Step 6: Final answer
   x = 15,588.19