Finding the Fourth Proportional to 8,348.50, 12,521.42 and 3,086.00

Step by Step Solution

1. Step 1: Write the proportion equation
   8,348.50 : 12,521.42 = 3,086.00 : x
2. Step 2: Convert to fraction form
   8,348.50/12,521.42 = 3,086.00/x
3. Step 3: Cross multiply
   8,348.50x = 12,521.42 × 3,086.00
4. Step 4: Simplify right side
   8,348.50x = 38,641,082.61
5. Step 5: Solve for x
   x = 38,641,082.61/8,348.50
6. Step 6: Final answer
   x = 4,628.51