Finding the Fourth Proportional to 10,155.92, 14,012.32 and 5,679.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.92 : 14,012.32 = 5,679.16 : x
2. Step 2: Convert to fraction form
   10,155.92/14,012.32 = 5,679.16/x
3. Step 3: Cross multiply
   10,155.92x = 14,012.32 × 5,679.16
4. Step 4: Simplify right side
   10,155.92x = 79,578,207.25
5. Step 5: Solve for x
   x = 79,578,207.25/10,155.92
6. Step 6: Final answer
   x = 7,835.65