Finding the Fourth Proportional to 8,796.79, 12,139.86 and 4,818.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,796.79 : 12,139.86 = 4,818.12 : x
2. Step 2: Convert to fraction form
   8,796.79/12,139.86 = 4,818.12/x
3. Step 3: Cross multiply
   8,796.79x = 12,139.86 × 4,818.12
4. Step 4: Simplify right side
   8,796.79x = 58,491,302.26
5. Step 5: Solve for x
   x = 58,491,302.26/8,796.79
6. Step 6: Final answer
   x = 6,649.16