Finding the Fourth Proportional to 11,427.19, 17,131.69 and 7,502.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,427.19 : 17,131.69 = 7,502.88 : x
2. Step 2: Convert to fraction form
   11,427.19/17,131.69 = 7,502.88/x
3. Step 3: Cross multiply
   11,427.19x = 17,131.69 × 7,502.88
4. Step 4: Simplify right side
   11,427.19x = 128,537,014.27
5. Step 5: Solve for x
   x = 128,537,014.27/11,427.19
6. Step 6: Final answer
   x = 11,248.35