Finding the Fourth Proportional to 13,435.92, 20,150.82 and 5,116.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,435.92 : 20,150.82 = 5,116.86 : x
2. Step 2: Convert to fraction form
   13,435.92/20,150.82 = 5,116.86/x
3. Step 3: Cross multiply
   13,435.92x = 20,150.82 × 5,116.86
4. Step 4: Simplify right side
   13,435.92x = 103,108,924.83
5. Step 5: Solve for x
   x = 103,108,924.83/13,435.92
6. Step 6: Final answer
   x = 7,674.12