Finding the Fourth Proportional to 8,078.08, 12,114.72 and 3,460

Step by Step Solution

1. Step 1: Write the proportion equation
   8,078.08 : 12,114.72 = 3,460 : x
2. Step 2: Convert to fraction form
   8,078.08/12,114.72 = 3,460/x
3. Step 3: Cross multiply
   8,078.08x = 12,114.72 × 3,460
4. Step 4: Simplify right side
   8,078.08x = 41,916,931.20
5. Step 5: Solve for x
   x = 41,916,931.20/8,078.08
6. Step 6: Final answer
   x = 5,188.97