Finding the Fourth Proportional to 8,116.57, 12,174.82 and 3,182.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,116.57 : 12,174.82 = 3,182.72 : x
2. Step 2: Convert to fraction form
   8,116.57/12,174.82 = 3,182.72/x
3. Step 3: Cross multiply
   8,116.57x = 12,174.82 × 3,182.72
4. Step 4: Simplify right side
   8,116.57x = 38,749,043.11
5. Step 5: Solve for x
   x = 38,749,043.11/8,116.57
6. Step 6: Final answer
   x = 4,774.07