Finding the Fourth Proportional to 12,585.40, 17,368.82 and 7,549.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,585.40 : 17,368.82 = 7,549.82 : x
2. Step 2: Convert to fraction form
   12,585.40/17,368.82 = 7,549.82/x
3. Step 3: Cross multiply
   12,585.40x = 17,368.82 × 7,549.82
4. Step 4: Simplify right side
   12,585.40x = 131,131,464.61
5. Step 5: Solve for x
   x = 131,131,464.61/12,585.40
6. Step 6: Final answer
   x = 10,419.33