Finding the Fourth Proportional to 8,339.06, 12,503.98 and 3,412.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,339.06 : 12,503.98 = 3,412.16 : x
2. Step 2: Convert to fraction form
   8,339.06/12,503.98 = 3,412.16/x
3. Step 3: Cross multiply
   8,339.06x = 12,503.98 × 3,412.16
4. Step 4: Simplify right side
   8,339.06x = 42,665,580.40
5. Step 5: Solve for x
   x = 42,665,580.40/8,339.06
6. Step 6: Final answer
   x = 5,116.35