Finding the Fourth Proportional to 7,480.76, 10,323.57 and 4,123.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,480.76 : 10,323.57 = 4,123.55 : x
2. Step 2: Convert to fraction form
   7,480.76/10,323.57 = 4,123.55/x
3. Step 3: Cross multiply
   7,480.76x = 10,323.57 × 4,123.55
4. Step 4: Simplify right side
   7,480.76x = 42,569,705.46
5. Step 5: Solve for x
   x = 42,569,705.46/7,480.76
6. Step 6: Final answer
   x = 5,690.56