Finding the Fourth Proportional to 10,109.66, 15,161.16 and 3,869.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,109.66 : 15,161.16 = 3,869.42 : x
2. Step 2: Convert to fraction form
   10,109.66/15,161.16 = 3,869.42/x
3. Step 3: Cross multiply
   10,109.66x = 15,161.16 × 3,869.42
4. Step 4: Simplify right side
   10,109.66x = 58,664,895.73
5. Step 5: Solve for x
   x = 58,664,895.73/10,109.66
6. Step 6: Final answer
   x = 5,802.86