Finding the Fourth Proportional to 8,200.83, 12,300.51 and 4,911.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,200.83 : 12,300.51 = 4,911.53 : x
2. Step 2: Convert to fraction form
   8,200.83/12,300.51 = 4,911.53/x
3. Step 3: Cross multiply
   8,200.83x = 12,300.51 × 4,911.53
4. Step 4: Simplify right side
   8,200.83x = 60,414,262.38
5. Step 5: Solve for x
   x = 60,414,262.38/8,200.83
6. Step 6: Final answer
   x = 7,366.85