Finding the Fourth Proportional to 7,481.06, 10,323.39 and 4,123.90

Step by Step Solution

1. Step 1: Write the proportion equation
   7,481.06 : 10,323.39 = 4,123.90 : x
2. Step 2: Convert to fraction form
   7,481.06/10,323.39 = 4,123.90/x
3. Step 3: Cross multiply
   7,481.06x = 10,323.39 × 4,123.90
4. Step 4: Simplify right side
   7,481.06x = 42,572,602.21
5. Step 5: Solve for x
   x = 42,572,602.21/7,481.06
6. Step 6: Final answer
   x = 5,690.72