Finding the Fourth Proportional to 10,912.20, 15,060.72 and 6,196.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,912.20 : 15,060.72 = 6,196.38 : x
2. Step 2: Convert to fraction form
   10,912.20/15,060.72 = 6,196.38/x
3. Step 3: Cross multiply
   10,912.20x = 15,060.72 × 6,196.38
4. Step 4: Simplify right side
   10,912.20x = 93,321,944.19
5. Step 5: Solve for x
   x = 93,321,944.19/10,912.20
6. Step 6: Final answer
   x = 8,552.07