Finding the Fourth Proportional to 8,796.70, 12,139.42 and 4,818.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,796.70 : 12,139.42 = 4,818.06 : x
2. Step 2: Convert to fraction form
   8,796.70/12,139.42 = 4,818.06/x
3. Step 3: Cross multiply
   8,796.70x = 12,139.42 × 4,818.06
4. Step 4: Simplify right side
   8,796.70x = 58,488,453.93
5. Step 5: Solve for x
   x = 58,488,453.93/8,796.70
6. Step 6: Final answer
   x = 6,648.91