Finding the Fourth Proportional to 368,150.24, 552,314.23 and 128,229.05

Step by Step Solution

1. Step 1: Write the proportion equation
   368,150.24 : 552,314.23 = 128,229.05 : x
2. Step 2: Convert to fraction form
   368,150.24/552,314.23 = 128,229.05/x
3. Step 3: Cross multiply
   368,150.24x = 552,314.23 × 128,229.05
4. Step 4: Simplify right side
   368,150.24x = 70,822,730,074.59
5. Step 5: Solve for x
   x = 70,822,730,074.59/368,150.24
6. Step 6: Final answer
   x = 192,374.53