Finding the Fourth Proportional to 17,677.76, 24,395.31 and 9,720.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,677.76 : 24,395.31 = 9,720.52 : x
2. Step 2: Convert to fraction form
   17,677.76/24,395.31 = 9,720.52/x
3. Step 3: Cross multiply
   17,677.76x = 24,395.31 × 9,720.52
4. Step 4: Simplify right side
   17,677.76x = 237,134,928.18
5. Step 5: Solve for x
   x = 237,134,928.18/17,677.76
6. Step 6: Final answer
   x = 13,414.31