Finding the Fourth Proportional to 7,480.25, 10,323.18 and 4,123.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,480.25 : 10,323.18 = 4,123.78 : x
2. Step 2: Convert to fraction form
   7,480.25/10,323.18 = 4,123.78/x
3. Step 3: Cross multiply
   7,480.25x = 10,323.18 × 4,123.78
4. Step 4: Simplify right side
   7,480.25x = 42,570,497.41
5. Step 5: Solve for x
   x = 42,570,497.41/7,480.25
6. Step 6: Final answer
   x = 5,691.05