Finding the Fourth Proportional to 308,160.38, 425,281.10 and 172,194.72

Step by Step Solution

1. Step 1: Write the proportion equation
   308,160.38 : 425,281.10 = 172,194.72 : x
2. Step 2: Convert to fraction form
   308,160.38/425,281.10 = 172,194.72/x
3. Step 3: Cross multiply
   308,160.38x = 425,281.10 × 172,194.72
4. Step 4: Simplify right side
   308,160.38x = 73,231,159,074.82
5. Step 5: Solve for x
   x = 73,231,159,074.82/308,160.38
6. Step 6: Final answer
   x = 237,639.76