Finding the Fourth Proportional to 7,480.76, 10,323.45 and 4,123.63

Step by Step Solution

1. Step 1: Write the proportion equation
   7,480.76 : 10,323.45 = 4,123.63 : x
2. Step 2: Convert to fraction form
   7,480.76/10,323.45 = 4,123.63/x
3. Step 3: Cross multiply
   7,480.76x = 10,323.45 × 4,123.63
4. Step 4: Simplify right side
   7,480.76x = 42,570,064.27
5. Step 5: Solve for x
   x = 42,570,064.27/7,480.76
6. Step 6: Final answer
   x = 5,690.61