Finding the Fourth Proportional to 307,392.42, 424,200.71 and 171,426.52

Step by Step Solution

1. Step 1: Write the proportion equation
   307,392.42 : 424,200.71 = 171,426.52 : x
2. Step 2: Convert to fraction form
   307,392.42/424,200.71 = 171,426.52/x
3. Step 3: Cross multiply
   307,392.42x = 424,200.71 × 171,426.52
4. Step 4: Simplify right side
   307,392.42x = 72,719,248,518.69
5. Step 5: Solve for x
   x = 72,719,248,518.69/307,392.42
6. Step 6: Final answer
   x = 236,568.13