Finding the Fourth Proportional to 12,589.68, 17,372.43 and 7,553.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,589.68 : 17,372.43 = 7,553.10 : x
2. Step 2: Convert to fraction form
   12,589.68/17,372.43 = 7,553.10/x
3. Step 3: Cross multiply
   12,589.68x = 17,372.43 × 7,553.10
4. Step 4: Simplify right side
   12,589.68x = 131,215,701.03
5. Step 5: Solve for x
   x = 131,215,701.03/12,589.68
6. Step 6: Final answer
   x = 10,422.48