Finding the Fourth Proportional to 623,373.72, 860,398.83 and 381,789.42

Step by Step Solution

1. Step 1: Write the proportion equation
   623,373.72 : 860,398.83 = 381,789.42 : x
2. Step 2: Convert to fraction form
   623,373.72/860,398.83 = 381,789.42/x
3. Step 3: Cross multiply
   623,373.72x = 860,398.83 × 381,789.42
4. Step 4: Simplify right side
   623,373.72x = 328,491,170,274.38
5. Step 5: Solve for x
   x = 328,491,170,274.38/623,373.72
6. Step 6: Final answer
   x = 526,957.04