Finding the Fourth Proportional to 8,404.96, 12,607.20 and 2,561.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,404.96 : 12,607.20 = 2,561.32 : x
2. Step 2: Convert to fraction form
   8,404.96/12,607.20 = 2,561.32/x
3. Step 3: Cross multiply
   8,404.96x = 12,607.20 × 2,561.32
4. Step 4: Simplify right side
   8,404.96x = 32,291,073.50
5. Step 5: Solve for x
   x = 32,291,073.50/8,404.96
6. Step 6: Final answer
   x = 3,841.91