Finding the Fourth Proportional to 308,803.32, 426,150.72 and 172,849.82

Step by Step Solution

1. Step 1: Write the proportion equation
   308,803.32 : 426,150.72 = 172,849.82 : x
2. Step 2: Convert to fraction form
   308,803.32/426,150.72 = 172,849.82/x
3. Step 3: Cross multiply
   308,803.32x = 426,150.72 × 172,849.82
4. Step 4: Simplify right side
   308,803.32x = 73,660,073,114.12
5. Step 5: Solve for x
   x = 73,660,073,114.12/308,803.32
6. Step 6: Final answer
   x = 238,533.94