Finding the Fourth Proportional to 12,528, 17,291.52 and 7,562.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,528 : 17,291.52 = 7,562.88 : x
2. Step 2: Convert to fraction form
   12,528/17,291.52 = 7,562.88/x
3. Step 3: Cross multiply
   12,528x = 17,291.52 × 7,562.88
4. Step 4: Simplify right side
   12,528x = 130,773,690.78
5. Step 5: Solve for x
   x = 130,773,690.78/12,528
6. Step 6: Final answer
   x = 10,438.51