Finding the Fourth Proportional to 8,116.30, 12,150.15 and 4,827.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,116.30 : 12,150.15 = 4,827.70 : x
2. Step 2: Convert to fraction form
   8,116.30/12,150.15 = 4,827.70/x
3. Step 3: Cross multiply
   8,116.30x = 12,150.15 × 4,827.70
4. Step 4: Simplify right side
   8,116.30x = 58,657,279.16
5. Step 5: Solve for x
   x = 58,657,279.16/8,116.30
6. Step 6: Final answer
   x = 7,227.10