Finding the Fourth Proportional to 10,155.06, 15,210.72 and 4,950

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.06 : 15,210.72 = 4,950 : x
2. Step 2: Convert to fraction form
   10,155.06/15,210.72 = 4,950/x
3. Step 3: Cross multiply
   10,155.06x = 15,210.72 × 4,950
4. Step 4: Simplify right side
   10,155.06x = 75,293,064
5. Step 5: Solve for x
   x = 75,293,064/10,155.06
6. Step 6: Final answer
   x = 7,414.34