Finding the Fourth Proportional to 10,111.29, 15,159.78 and 3,866.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111.29 : 15,159.78 = 3,866.04 : x
2. Step 2: Convert to fraction form
   10,111.29/15,159.78 = 3,866.04/x
3. Step 3: Cross multiply
   10,111.29x = 15,159.78 × 3,866.04
4. Step 4: Simplify right side
   10,111.29x = 58,608,315.87
5. Step 5: Solve for x
   x = 58,608,315.87/10,111.29
6. Step 6: Final answer
   x = 5,796.32