Finding the Fourth Proportional to 7,361.22, 10,155.90 and 4,174.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,361.22 : 10,155.90 = 4,174.05 : x
2. Step 2: Convert to fraction form
   7,361.22/10,155.90 = 4,174.05/x
3. Step 3: Cross multiply
   7,361.22x = 10,155.90 × 4,174.05
4. Step 4: Simplify right side
   7,361.22x = 42,391,234.40
5. Step 5: Solve for x
   x = 42,391,234.40/7,361.22
6. Step 6: Final answer
   x = 5,758.72