Finding the Fourth Proportional to 7,481.13, 10,323.90 and 4,124.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,481.13 : 10,323.90 = 4,124.31 : x
2. Step 2: Convert to fraction form
   7,481.13/10,323.90 = 4,124.31/x
3. Step 3: Cross multiply
   7,481.13x = 10,323.90 × 4,124.31
4. Step 4: Simplify right side
   7,481.13x = 42,578,964.01
5. Step 5: Solve for x
   x = 42,578,964.01/7,481.13
6. Step 6: Final answer
   x = 5,691.52