Finding the Fourth Proportional to 17,280.16, 25,919.33 and 5,592.47

Step by Step Solution

1. Step 1: Write the proportion equation
   17,280.16 : 25,919.33 = 5,592.47 : x
2. Step 2: Convert to fraction form
   17,280.16/25,919.33 = 5,592.47/x
3. Step 3: Cross multiply
   17,280.16x = 25,919.33 × 5,592.47
4. Step 4: Simplify right side
   17,280.16x = 144,952,917.89
5. Step 5: Solve for x
   x = 144,952,917.89/17,280.16
6. Step 6: Final answer
   x = 8,388.40