Finding the Fourth Proportional to 428,280.76, 591,002.76 and 237,282.76

Step by Step Solution

1. Step 1: Write the proportion equation
   428,280.76 : 591,002.76 = 237,282.76 : x
2. Step 2: Convert to fraction form
   428,280.76/591,002.76 = 237,282.76/x
3. Step 3: Cross multiply
   428,280.76x = 591,002.76 × 237,282.76
4. Step 4: Simplify right side
   428,280.76x = 140,234,766,060.42
5. Step 5: Solve for x
   x = 140,234,766,060.42/428,280.76
6. Step 6: Final answer
   x = 327,436.53