Finding the Fourth Proportional to 8,796.80, 12,139.59 and 4,817.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,796.80 : 12,139.59 = 4,817.92 : x
2. Step 2: Convert to fraction form
   8,796.80/12,139.59 = 4,817.92/x
3. Step 3: Cross multiply
   8,796.80x = 12,139.59 × 4,817.92
4. Step 4: Simplify right side
   8,796.80x = 58,487,573.45
5. Step 5: Solve for x
   x = 58,487,573.45/8,796.80
6. Step 6: Final answer
   x = 6,648.73