Finding the Fourth Proportional to 8,817.83, 13,274.84 and 8,042.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,817.83 : 13,274.84 = 8,042.81 : x
2. Step 2: Convert to fraction form
   8,817.83/13,274.84 = 8,042.81/x
3. Step 3: Cross multiply
   8,817.83x = 13,274.84 × 8,042.81
4. Step 4: Simplify right side
   8,817.83x = 106,766,949.53
5. Step 5: Solve for x
   x = 106,766,949.53/8,817.83
6. Step 6: Final answer
   x = 12,108.08