Finding the Fourth Proportional to 5,356.42, 8,030.29 and 2,238.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,356.42 : 8,030.29 = 2,238.81 : x
2. Step 2: Convert to fraction form
   5,356.42/8,030.29 = 2,238.81/x
3. Step 3: Cross multiply
   5,356.42x = 8,030.29 × 2,238.81
4. Step 4: Simplify right side
   5,356.42x = 17,978,293.55
5. Step 5: Solve for x
   x = 17,978,293.55/5,356.42
6. Step 6: Final answer
   x = 3,356.40