Finding the Fourth Proportional to 307,663.82, 424,597.39 and 171,724.29

Step by Step Solution

1. Step 1: Write the proportion equation
   307,663.82 : 424,597.39 = 171,724.29 : x
2. Step 2: Convert to fraction form
   307,663.82/424,597.39 = 171,724.29/x
3. Step 3: Cross multiply
   307,663.82x = 424,597.39 × 171,724.29
4. Step 4: Simplify right side
   307,663.82x = 72,913,685,333.60
5. Step 5: Solve for x
   x = 72,913,685,333.60/307,663.82
6. Step 6: Final answer
   x = 236,991.42