Finding the Fourth Proportional to 7,480.72, 10,323.34 and 4,123.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,480.72 : 10,323.34 = 4,123.84 : x
2. Step 2: Convert to fraction form
   7,480.72/10,323.34 = 4,123.84/x
3. Step 3: Cross multiply
   7,480.72x = 10,323.34 × 4,123.84
4. Step 4: Simplify right side
   7,480.72x = 42,571,802.43
5. Step 5: Solve for x
   x = 42,571,802.43/7,480.72
6. Step 6: Final answer
   x = 5,690.87