Finding the Fourth Proportional to 17,210.88, 25,810.92 and 5,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,210.88 : 25,810.92 = 5,521.50 : x
2. Step 2: Convert to fraction form
   17,210.88/25,810.92 = 5,521.50/x
3. Step 3: Cross multiply
   17,210.88x = 25,810.92 × 5,521.50
4. Step 4: Simplify right side
   17,210.88x = 142,514,994.78
5. Step 5: Solve for x
   x = 142,514,994.78/17,210.88
6. Step 6: Final answer
   x = 8,280.52