Finding the Fourth Proportional to 5,641.27, 8,464.98 and 2,521.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,641.27 : 8,464.98 = 2,521.15 : x
2. Step 2: Convert to fraction form
   5,641.27/8,464.98 = 2,521.15/x
3. Step 3: Cross multiply
   5,641.27x = 8,464.98 × 2,521.15
4. Step 4: Simplify right side
   5,641.27x = 21,341,511.79
5. Step 5: Solve for x
   x = 21,341,511.79/5,641.27
6. Step 6: Final answer
   x = 3,783.10