Finding the Fourth Proportional to 7,205.20, 10,807.59 and 3,938.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,205.20 : 10,807.59 = 3,938.98 : x
2. Step 2: Convert to fraction form
   7,205.20/10,807.59 = 3,938.98/x
3. Step 3: Cross multiply
   7,205.20x = 10,807.59 × 3,938.98
4. Step 4: Simplify right side
   7,205.20x = 42,570,826.82
5. Step 5: Solve for x
   x = 42,570,826.82/7,205.20
6. Step 6: Final answer
   x = 5,908.35