Finding the Fourth Proportional to 8,354.01, 12,520.08 and 3,417.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,354.01 : 12,520.08 = 3,417.87 : x
2. Step 2: Convert to fraction form
   8,354.01/12,520.08 = 3,417.87/x
3. Step 3: Cross multiply
   8,354.01x = 12,520.08 × 3,417.87
4. Step 4: Simplify right side
   8,354.01x = 42,792,005.83
5. Step 5: Solve for x
   x = 42,792,005.83/8,354.01
6. Step 6: Final answer
   x = 5,122.33