Finding the Fourth Proportional to 7,420.50, 10,240.29 and 4,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,420.50 : 10,240.29 = 4,108.50 : x
2. Step 2: Convert to fraction form
   7,420.50/10,240.29 = 4,108.50/x
3. Step 3: Cross multiply
   7,420.50x = 10,240.29 × 4,108.50
4. Step 4: Simplify right side
   7,420.50x = 42,072,231.47
5. Step 5: Solve for x
   x = 42,072,231.47/7,420.50
6. Step 6: Final answer
   x = 5,669.73