Finding the Fourth Proportional to 67,650.63, 101,355.57 and 57,688.85

Step by Step Solution

1. Step 1: Write the proportion equation
   67,650.63 : 101,355.57 = 57,688.85 : x
2. Step 2: Convert to fraction form
   67,650.63/101,355.57 = 57,688.85/x
3. Step 3: Cross multiply
   67,650.63x = 101,355.57 × 57,688.85
4. Step 4: Simplify right side
   67,650.63x = 5,847,085,767.62
5. Step 5: Solve for x
   x = 5,847,085,767.62/67,650.63
6. Step 6: Final answer
   x = 86,430.62