Finding the Fourth Proportional to 307,114.37, 423,818.24 and 171,145.33

Step by Step Solution

1. Step 1: Write the proportion equation
   307,114.37 : 423,818.24 = 171,145.33 : x
2. Step 2: Convert to fraction form
   307,114.37/423,818.24 = 171,145.33/x
3. Step 3: Cross multiply
   307,114.37x = 423,818.24 × 171,145.33
4. Step 4: Simplify right side
   307,114.37x = 72,534,510,629.55
5. Step 5: Solve for x
   x = 72,534,510,629.55/307,114.37
6. Step 6: Final answer
   x = 236,180.78