Finding the Fourth Proportional to 8,920.18, 12,310.71 and 4,941.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,920.18 : 12,310.71 = 4,941.46 : x
2. Step 2: Convert to fraction form
   8,920.18/12,310.71 = 4,941.46/x
3. Step 3: Cross multiply
   8,920.18x = 12,310.71 × 4,941.46
4. Step 4: Simplify right side
   8,920.18x = 60,832,881.04
5. Step 5: Solve for x
   x = 60,832,881.04/8,920.18
6. Step 6: Final answer
   x = 6,819.69