Finding the Fourth Proportional to 8,796.90, 12,139.98 and 4,818.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,796.90 : 12,139.98 = 4,818.23 : x
2. Step 2: Convert to fraction form
   8,796.90/12,139.98 = 4,818.23/x
3. Step 3: Cross multiply
   8,796.90x = 12,139.98 × 4,818.23
4. Step 4: Simplify right side
   8,796.90x = 58,493,250.88
5. Step 5: Solve for x
   x = 58,493,250.88/8,796.90
6. Step 6: Final answer
   x = 6,649.30