Finding the Fourth Proportional to 8,079.72, 12,091.42 and 4,958.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,079.72 : 12,091.42 = 4,958.28 : x
2. Step 2: Convert to fraction form
   8,079.72/12,091.42 = 4,958.28/x
3. Step 3: Cross multiply
   8,079.72x = 12,091.42 × 4,958.28
4. Step 4: Simplify right side
   8,079.72x = 59,952,645.96
5. Step 5: Solve for x
   x = 59,952,645.96/8,079.72
6. Step 6: Final answer
   x = 7,420.14