Finding the Fourth Proportional to 7,914.25, 10,921.85 and 5,124.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,914.25 : 10,921.85 = 5,124.61 : x
2. Step 2: Convert to fraction form
   7,914.25/10,921.85 = 5,124.61/x
3. Step 3: Cross multiply
   7,914.25x = 10,921.85 × 5,124.61
4. Step 4: Simplify right side
   7,914.25x = 55,970,221.73
5. Step 5: Solve for x
   x = 55,970,221.73/7,914.25
6. Step 6: Final answer
   x = 7,072.08