Finding the Fourth Proportional to 7,480.56, 10,322.70 and 4,123.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,480.56 : 10,322.70 = 4,123.40 : x
2. Step 2: Convert to fraction form
   7,480.56/10,322.70 = 4,123.40/x
3. Step 3: Cross multiply
   7,480.56x = 10,322.70 × 4,123.40
4. Step 4: Simplify right side
   7,480.56x = 42,564,569.57
5. Step 5: Solve for x
   x = 42,564,569.57/7,480.56
6. Step 6: Final answer
   x = 5,690.03