Finding the Fourth Proportional to 7,456.66, 10,290.30 and 4,099.62

Step by Step Solution

1. Step 1: Write the proportion equation
   7,456.66 : 10,290.30 = 4,099.62 : x
2. Step 2: Convert to fraction form
   7,456.66/10,290.30 = 4,099.62/x
3. Step 3: Cross multiply
   7,456.66x = 10,290.30 × 4,099.62
4. Step 4: Simplify right side
   7,456.66x = 42,186,319.69
5. Step 5: Solve for x
   x = 42,186,319.69/7,456.66
6. Step 6: Final answer
   x = 5,657.54