Finding the Fourth Proportional to 12,536.89, 17,288.97 and 7,500.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,536.89 : 17,288.97 = 7,500.31 : x
2. Step 2: Convert to fraction form
   12,536.89/17,288.97 = 7,500.31/x
3. Step 3: Cross multiply
   12,536.89x = 17,288.97 × 7,500.31
4. Step 4: Simplify right side
   12,536.89x = 129,672,634.58
5. Step 5: Solve for x
   x = 129,672,634.58/12,536.89
6. Step 6: Final answer
   x = 10,343.29