Finding the Fourth Proportional to 6,845.76, 9,448.74 and 5,724.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,845.76 : 9,448.74 = 5,724.78 : x
2. Step 2: Convert to fraction form
   6,845.76/9,448.74 = 5,724.78/x
3. Step 3: Cross multiply
   6,845.76x = 9,448.74 × 5,724.78
4. Step 4: Simplify right side
   6,845.76x = 54,091,957.78
5. Step 5: Solve for x
   x = 54,091,957.78/6,845.76
6. Step 6: Final answer
   x = 7,901.53