Finding the Fourth Proportional to 5,076.06, 7,002.63 and 2,978.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,076.06 : 7,002.63 = 2,978.70 : x
2. Step 2: Convert to fraction form
   5,076.06/7,002.63 = 2,978.70/x
3. Step 3: Cross multiply
   5,076.06x = 7,002.63 × 2,978.70
4. Step 4: Simplify right side
   5,076.06x = 20,858,733.98
5. Step 5: Solve for x
   x = 20,858,733.98/5,076.06
6. Step 6: Final answer
   x = 4,109.24