Finding the Fourth Proportional to 17,439.57, 26,164.80 and 5,760.99

Step by Step Solution

1. Step 1: Write the proportion equation
   17,439.57 : 26,164.80 = 5,760.99 : x
2. Step 2: Convert to fraction form
   17,439.57/26,164.80 = 5,760.99/x
3. Step 3: Cross multiply
   17,439.57x = 26,164.80 × 5,760.99
4. Step 4: Simplify right side
   17,439.57x = 150,735,151.15
5. Step 5: Solve for x
   x = 150,735,151.15/17,439.57
6. Step 6: Final answer
   x = 8,643.28