Finding the Fourth Proportional to 307,871.71, 424,870.17 and 171,901.06

Step by Step Solution

1. Step 1: Write the proportion equation
   307,871.71 : 424,870.17 = 171,901.06 : x
2. Step 2: Convert to fraction form
   307,871.71/424,870.17 = 171,901.06/x
3. Step 3: Cross multiply
   307,871.71x = 424,870.17 × 171,901.06
4. Step 4: Simplify right side
   307,871.71x = 73,035,632,585.38
5. Step 5: Solve for x
   x = 73,035,632,585.38/307,871.71
6. Step 6: Final answer
   x = 237,227.49