Finding the Fourth Proportional to 423,964.73, 585,103.86 and 242,733.50

Step by Step Solution

1. Step 1: Write the proportion equation
   423,964.73 : 585,103.86 = 242,733.50 : x
2. Step 2: Convert to fraction form
   423,964.73/585,103.86 = 242,733.50/x
3. Step 3: Cross multiply
   423,964.73x = 585,103.86 × 242,733.50
4. Step 4: Simplify right side
   423,964.73x = 142,024,304,875.79
5. Step 5: Solve for x
   x = 142,024,304,875.79/423,964.73
6. Step 6: Final answer
   x = 334,990.85