Finding the Fourth Proportional to 7,481.28, 10,323.69 and 4,123.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,481.28 : 10,323.69 = 4,123.91 : x
2. Step 2: Convert to fraction form
   7,481.28/10,323.69 = 4,123.91/x
3. Step 3: Cross multiply
   7,481.28x = 10,323.69 × 4,123.91
4. Step 4: Simplify right side
   7,481.28x = 42,573,916.81
5. Step 5: Solve for x
   x = 42,573,916.81/7,481.28
6. Step 6: Final answer
   x = 5,690.73