Finding the Fourth Proportional to 10,156.89, 15,233.79 and 3,919.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,156.89 : 15,233.79 = 3,919.86 : x
2. Step 2: Convert to fraction form
   10,156.89/15,233.79 = 3,919.86/x
3. Step 3: Cross multiply
   10,156.89x = 15,233.79 × 3,919.86
4. Step 4: Simplify right side
   10,156.89x = 59,714,324.07
5. Step 5: Solve for x
   x = 59,714,324.07/10,156.89
6. Step 6: Final answer
   x = 5,879.19