Finding the Fourth Proportional to 7,350.78, 10,144.05 and 4,206.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,350.78 : 10,144.05 = 4,206.96 : x
2. Step 2: Convert to fraction form
   7,350.78/10,144.05 = 4,206.96/x
3. Step 3: Cross multiply
   7,350.78x = 10,144.05 × 4,206.96
4. Step 4: Simplify right side
   7,350.78x = 42,675,612.59
5. Step 5: Solve for x
   x = 42,675,612.59/7,350.78
6. Step 6: Final answer
   x = 5,805.59