Finding the Fourth Proportional to 428,734.56, 591,667.52 and 237,765.76

Step by Step Solution

1. Step 1: Write the proportion equation
   428,734.56 : 591,667.52 = 237,765.76 : x
2. Step 2: Convert to fraction form
   428,734.56/591,667.52 = 237,765.76/x
3. Step 3: Cross multiply
   428,734.56x = 591,667.52 × 237,765.76
4. Step 4: Simplify right side
   428,734.56x = 140,678,277,560.12
5. Step 5: Solve for x
   x = 140,678,277,560.12/428,734.56
6. Step 6: Final answer
   x = 328,124.42