Finding the Fourth Proportional to 623,380.83, 860,063.00 and 381,411.15

Step by Step Solution

1. Step 1: Write the proportion equation
   623,380.83 : 860,063.00 = 381,411.15 : x
2. Step 2: Convert to fraction form
   623,380.83/860,063.00 = 381,411.15/x
3. Step 3: Cross multiply
   623,380.83x = 860,063.00 × 381,411.15
4. Step 4: Simplify right side
   623,380.83x = 328,037,615,995.39
5. Step 5: Solve for x
   x = 328,037,615,995.39/623,380.83
6. Step 6: Final answer
   x = 526,223.46