Finding the Fourth Proportional to 17,720.70, 24,454.62 and 9,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,720.70 : 24,454.62 = 9,762.72 : x
2. Step 2: Convert to fraction form
   17,720.70/24,454.62 = 9,762.72/x
3. Step 3: Cross multiply
   17,720.70x = 24,454.62 × 9,762.72
4. Step 4: Simplify right side
   17,720.70x = 238,743,607.77
5. Step 5: Solve for x
   x = 238,743,607.77/17,720.70
6. Step 6: Final answer
   x = 13,472.58