Finding the Fourth Proportional to 10,922.18, 15,077.76 and 7,391.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,922.18 : 15,077.76 = 7,391.12 : x
2. Step 2: Convert to fraction form
   10,922.18/15,077.76 = 7,391.12/x
3. Step 3: Cross multiply
   10,922.18x = 15,077.76 × 7,391.12
4. Step 4: Simplify right side
   10,922.18x = 111,441,533.49
5. Step 5: Solve for x
   x = 111,441,533.49/10,922.18
6. Step 6: Final answer
   x = 10,203.23