Finding the Fourth Proportional to 623,581.74, 935,081.82 and 323,981.78

Step by Step Solution

1. Step 1: Write the proportion equation
   623,581.74 : 935,081.82 = 323,981.78 : x
2. Step 2: Convert to fraction form
   623,581.74/935,081.82 = 323,981.78/x
3. Step 3: Cross multiply
   623,581.74x = 935,081.82 × 323,981.78
4. Step 4: Simplify right side
   623,581.74x = 302,949,467,813.83
5. Step 5: Solve for x
   x = 302,949,467,813.83/623,581.74
6. Step 6: Final answer
   x = 485,821.58