Finding the Fourth Proportional to 7,361.20, 10,158.42 and 4,217.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,361.20 : 10,158.42 = 4,217.38 : x
2. Step 2: Convert to fraction form
   7,361.20/10,158.42 = 4,217.38/x
3. Step 3: Cross multiply
   7,361.20x = 10,158.42 × 4,217.38
4. Step 4: Simplify right side
   7,361.20x = 42,841,917.34
5. Step 5: Solve for x
   x = 42,841,917.34/7,361.20
6. Step 6: Final answer
   x = 5,819.96