Finding the Fourth Proportional to 8,881.09, 12,255.83 and 4,902.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,881.09 : 12,255.83 = 4,902.20 : x
2. Step 2: Convert to fraction form
   8,881.09/12,255.83 = 4,902.20/x
3. Step 3: Cross multiply
   8,881.09x = 12,255.83 × 4,902.20
4. Step 4: Simplify right side
   8,881.09x = 60,080,477.74
5. Step 5: Solve for x
   x = 60,080,477.74/8,881.09
6. Step 6: Final answer
   x = 6,764.99