Finding the Fourth Proportional to 307,871.96, 424,870.52 and 171,901.31

Step by Step Solution

1. Step 1: Write the proportion equation
   307,871.96 : 424,870.52 = 171,901.31 : x
2. Step 2: Convert to fraction form
   307,871.96/424,870.52 = 171,901.31/x
3. Step 3: Cross multiply
   307,871.96x = 424,870.52 × 171,901.31
4. Step 4: Simplify right side
   307,871.96x = 73,035,795,984.52
5. Step 5: Solve for x
   x = 73,035,795,984.52/307,871.96
6. Step 6: Final answer
   x = 237,227.83