Finding the Fourth Proportional to 307,714.64, 424,667.59 and 171,775.12

Step by Step Solution

1. Step 1: Write the proportion equation
   307,714.64 : 424,667.59 = 171,775.12 : x
2. Step 2: Convert to fraction form
   307,714.64/424,667.59 = 171,775.12/x
3. Step 3: Cross multiply
   307,714.64x = 424,667.59 × 171,775.12
4. Step 4: Simplify right side
   307,714.64x = 72,947,324,109.02
5. Step 5: Solve for x
   x = 72,947,324,109.02/307,714.64
6. Step 6: Final answer
   x = 237,061.60