Finding the Fourth Proportional to 11,417.13, 17,130.82 and 7,256.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,417.13 : 17,130.82 = 7,256.05 : x
2. Step 2: Convert to fraction form
   11,417.13/17,130.82 = 7,256.05/x
3. Step 3: Cross multiply
   11,417.13x = 17,130.82 × 7,256.05
4. Step 4: Simplify right side
   11,417.13x = 124,302,086.46
5. Step 5: Solve for x
   x = 124,302,086.46/11,417.13
6. Step 6: Final answer
   x = 10,887.33