Finding the Fourth Proportional to 9,112.28, 12,573.02 and 5,335.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.28 : 12,573.02 = 5,335.79 : x
2. Step 2: Convert to fraction form
   9,112.28/12,573.02 = 5,335.79/x
3. Step 3: Cross multiply
   9,112.28x = 12,573.02 × 5,335.79
4. Step 4: Simplify right side
   9,112.28x = 67,086,944.86
5. Step 5: Solve for x
   x = 67,086,944.86/9,112.28
6. Step 6: Final answer
   x = 7,362.26