Finding the Fourth Proportional to 7,952.07, 10,978.83 and 5,120.85

Step by Step Solution

1. Step 1: Write the proportion equation
   7,952.07 : 10,978.83 = 5,120.85 : x
2. Step 2: Convert to fraction form
   7,952.07/10,978.83 = 5,120.85/x
3. Step 3: Cross multiply
   7,952.07x = 10,978.83 × 5,120.85
4. Step 4: Simplify right side
   7,952.07x = 56,220,941.61
5. Step 5: Solve for x
   x = 56,220,941.61/7,952.07
6. Step 6: Final answer
   x = 7,069.98