Finding the Fourth Proportional to 67,103.83, 100,688.55 and 47,508.31

Step by Step Solution

1. Step 1: Write the proportion equation
   67,103.83 : 100,688.55 = 47,508.31 : x
2. Step 2: Convert to fraction form
   67,103.83/100,688.55 = 47,508.31/x
3. Step 3: Cross multiply
   67,103.83x = 100,688.55 × 47,508.31
4. Step 4: Simplify right side
   67,103.83x = 4,783,542,846.85
5. Step 5: Solve for x
   x = 4,783,542,846.85/67,103.83
6. Step 6: Final answer
   x = 71,285.69