Finding the Fourth Proportional to 8,781.17, 12,118.01 and 4,802.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,781.17 : 12,118.01 = 4,802.31 : x
2. Step 2: Convert to fraction form
   8,781.17/12,118.01 = 4,802.31/x
3. Step 3: Cross multiply
   8,781.17x = 12,118.01 × 4,802.31
4. Step 4: Simplify right side
   8,781.17x = 58,194,440.60
5. Step 5: Solve for x
   x = 58,194,440.60/8,781.17
6. Step 6: Final answer
   x = 6,627.19