Finding the Fourth Proportional to 10,802.90, 14,914.89 and 8,818.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,802.90 : 14,914.89 = 8,818.18 : x
2. Step 2: Convert to fraction form
   10,802.90/14,914.89 = 8,818.18/x
3. Step 3: Cross multiply
   10,802.90x = 14,914.89 × 8,818.18
4. Step 4: Simplify right side
   10,802.90x = 131,522,066.03
5. Step 5: Solve for x
   x = 131,522,066.03/10,802.90
6. Step 6: Final answer
   x = 12,174.70