Finding the Fourth Proportional to 5,608.98, 8,406.18 and 5,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,608.98 : 8,406.18 = 5,521.50 : x
2. Step 2: Convert to fraction form
   5,608.98/8,406.18 = 5,521.50/x
3. Step 3: Cross multiply
   5,608.98x = 8,406.18 × 5,521.50
4. Step 4: Simplify right side
   5,608.98x = 46,414,722.87
5. Step 5: Solve for x
   x = 46,414,722.87/5,608.98
6. Step 6: Final answer
   x = 8,275.07