Finding the Fourth Proportional to 307,420.35, 424,240.83 and 171,463.10

Step by Step Solution

1. Step 1: Write the proportion equation
   307,420.35 : 424,240.83 = 171,463.10 : x
2. Step 2: Convert to fraction form
   307,420.35/424,240.83 = 171,463.10/x
3. Step 3: Cross multiply
   307,420.35x = 424,240.83 × 171,463.10
4. Step 4: Simplify right side
   307,420.35x = 72,741,648,123.52
5. Step 5: Solve for x
   x = 72,741,648,123.52/307,420.35
6. Step 6: Final answer
   x = 236,619.50