Finding the Fourth Proportional to 5,078.94, 7,008.30 and 2,955.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,078.94 : 7,008.30 = 2,955.12 : x
2. Step 2: Convert to fraction form
   5,078.94/7,008.30 = 2,955.12/x
3. Step 3: Cross multiply
   5,078.94x = 7,008.30 × 2,955.12
4. Step 4: Simplify right side
   5,078.94x = 20,710,367.50
5. Step 5: Solve for x
   x = 20,710,367.50/5,078.94
6. Step 6: Final answer
   x = 4,077.69