Finding the Fourth Proportional to 17,160.09, 25,740.59 and 5,915.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,160.09 : 25,740.59 = 5,915.31 : x
2. Step 2: Convert to fraction form
   17,160.09/25,740.59 = 5,915.31/x
3. Step 3: Cross multiply
   17,160.09x = 25,740.59 × 5,915.31
4. Step 4: Simplify right side
   17,160.09x = 152,263,539.86
5. Step 5: Solve for x
   x = 152,263,539.86/17,160.09
6. Step 6: Final answer
   x = 8,873.12