Finding the Fourth Proportional to 5,074.32, 7,003.08 and 2,979.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,074.32 : 7,003.08 = 2,979.12 : x
2. Step 2: Convert to fraction form
   5,074.32/7,003.08 = 2,979.12/x
3. Step 3: Cross multiply
   5,074.32x = 7,003.08 × 2,979.12
4. Step 4: Simplify right side
   5,074.32x = 20,863,015.69
5. Step 5: Solve for x
   x = 20,863,015.69/5,074.32
6. Step 6: Final answer
   x = 4,111.49