Finding the Fourth Proportional to 8,912.88, 12,300.39 and 4,934.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,912.88 : 12,300.39 = 4,934.16 : x
2. Step 2: Convert to fraction form
   8,912.88/12,300.39 = 4,934.16/x
3. Step 3: Cross multiply
   8,912.88x = 12,300.39 × 4,934.16
4. Step 4: Simplify right side
   8,912.88x = 60,692,092.32
5. Step 5: Solve for x
   x = 60,692,092.32/8,912.88
6. Step 6: Final answer
   x = 6,809.48