Finding the Fourth Proportional to 10,155.08, 14,012.78 and 5,617.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.08 : 14,012.78 = 5,617.14 : x
2. Step 2: Convert to fraction form
   10,155.08/14,012.78 = 5,617.14/x
3. Step 3: Cross multiply
   10,155.08x = 14,012.78 × 5,617.14
4. Step 4: Simplify right side
   10,155.08x = 78,711,718.96
5. Step 5: Solve for x
   x = 78,711,718.96/10,155.08
6. Step 6: Final answer
   x = 7,750.97