Finding the Fourth Proportional to 8,897.92, 12,278.52 and 4,919.00

Step by Step Solution

1. Step 1: Write the proportion equation
   8,897.92 : 12,278.52 = 4,919.00 : x
2. Step 2: Convert to fraction form
   8,897.92/12,278.52 = 4,919.00/x
3. Step 3: Cross multiply
   8,897.92x = 12,278.52 × 4,919.00
4. Step 4: Simplify right side
   8,897.92x = 60,397,978.49
5. Step 5: Solve for x
   x = 60,397,978.49/8,897.92
6. Step 6: Final answer
   x = 6,787.88