Finding the Fourth Proportional to 172,933.24, 257,680.72 and 154,068.31

Step by Step Solution

1. Step 1: Write the proportion equation
   172,933.24 : 257,680.72 = 154,068.31 : x
2. Step 2: Convert to fraction form
   172,933.24/257,680.72 = 154,068.31/x
3. Step 3: Cross multiply
   172,933.24x = 257,680.72 × 154,068.31
4. Step 4: Simplify right side
   172,933.24x = 39,700,433,049.98
5. Step 5: Solve for x
   x = 39,700,433,049.98/172,933.24
6. Step 6: Final answer
   x = 229,570.86