Finding the Fourth Proportional to 623,100.58, 934,251.57 and 263,173.91

Step by Step Solution

1. Step 1: Write the proportion equation
   623,100.58 : 934,251.57 = 263,173.91 : x
2. Step 2: Convert to fraction form
   623,100.58/934,251.57 = 263,173.91/x
3. Step 3: Cross multiply
   623,100.58x = 934,251.57 × 263,173.91
4. Step 4: Simplify right side
   623,100.58x = 245,870,633,929.28
5. Step 5: Solve for x
   x = 245,870,633,929.28/623,100.58
6. Step 6: Final answer
   x = 394,592.21