Finding the Fourth Proportional to 11,417.63, 17,131.57 and 7,256.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,417.63 : 17,131.57 = 7,256.56 : x
2. Step 2: Convert to fraction form
   11,417.63/17,131.57 = 7,256.56/x
3. Step 3: Cross multiply
   11,417.63x = 17,131.57 × 7,256.56
4. Step 4: Simplify right side
   11,417.63x = 124,316,265.60
5. Step 5: Solve for x
   x = 124,316,265.60/11,417.63
6. Step 6: Final answer
   x = 10,888.10