Finding the Fourth Proportional to 422,061, 582,499.68 and 240,731.30

Step by Step Solution

1. Step 1: Write the proportion equation
   422,061 : 582,499.68 = 240,731.30 : x
2. Step 2: Convert to fraction form
   422,061/582,499.68 = 240,731.30/x
3. Step 3: Cross multiply
   422,061x = 582,499.68 × 240,731.30
4. Step 4: Simplify right side
   422,061x = 140,225,905,215.98
5. Step 5: Solve for x
   x = 140,225,905,215.98/422,061
6. Step 6: Final answer
   x = 332,240.85