Finding the Fourth Proportional to 10,155.30, 15,200.55 and 7,952.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.30 : 15,200.55 = 7,952.10 : x
2. Step 2: Convert to fraction form
   10,155.30/15,200.55 = 7,952.10/x
3. Step 3: Cross multiply
   10,155.30x = 15,200.55 × 7,952.10
4. Step 4: Simplify right side
   10,155.30x = 120,876,293.66
5. Step 5: Solve for x
   x = 120,876,293.66/10,155.30
6. Step 6: Final answer
   x = 11,902.78