Finding the Fourth Proportional to 17,157.39, 23,677.52 and 9,705.39

Step by Step Solution

1. Step 1: Write the proportion equation
   17,157.39 : 23,677.52 = 9,705.39 : x
2. Step 2: Convert to fraction form
   17,157.39/23,677.52 = 9,705.39/x
3. Step 3: Cross multiply
   17,157.39x = 23,677.52 × 9,705.39
4. Step 4: Simplify right side
   17,157.39x = 229,799,517.31
5. Step 5: Solve for x
   x = 229,799,517.31/17,157.39
6. Step 6: Final answer
   x = 13,393.62