Finding the Fourth Proportional to 9,016.92, 12,444.02 and 5,189.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.92 : 12,444.02 = 5,189.72 : x
2. Step 2: Convert to fraction form
   9,016.92/12,444.02 = 5,189.72/x
3. Step 3: Cross multiply
   9,016.92x = 12,444.02 × 5,189.72
4. Step 4: Simplify right side
   9,016.92x = 64,580,979.47
5. Step 5: Solve for x
   x = 64,580,979.47/9,016.92
6. Step 6: Final answer
   x = 7,162.20