Finding the Fourth Proportional to 8,912.52, 12,298.91 and 4,933.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,912.52 : 12,298.91 = 4,933.40 : x
2. Step 2: Convert to fraction form
   8,912.52/12,298.91 = 4,933.40/x
3. Step 3: Cross multiply
   8,912.52x = 12,298.91 × 4,933.40
4. Step 4: Simplify right side
   8,912.52x = 60,675,356.43
5. Step 5: Solve for x
   x = 60,675,356.43/8,912.52
6. Step 6: Final answer
   x = 6,807.88