Finding the Fourth Proportional to 274,081.69, 378,235.55 and 153,229.69

Step by Step Solution

1. Step 1: Write the proportion equation
   274,081.69 : 378,235.55 = 153,229.69 : x
2. Step 2: Convert to fraction form
   274,081.69/378,235.55 = 153,229.69/x
3. Step 3: Cross multiply
   274,081.69x = 378,235.55 × 153,229.69
4. Step 4: Simplify right side
   274,081.69x = 57,956,916,073.48
5. Step 5: Solve for x
   x = 57,956,916,073.48/274,081.69
6. Step 6: Final answer
   x = 211,458.55