Finding the Fourth Proportional to 67,644.72, 93,435.12 and 51,693.12

Step by Step Solution

1. Step 1: Write the proportion equation
   67,644.72 : 93,435.12 = 51,693.12 : x
2. Step 2: Convert to fraction form
   67,644.72/93,435.12 = 51,693.12/x
3. Step 3: Cross multiply
   67,644.72x = 93,435.12 × 51,693.12
4. Step 4: Simplify right side
   67,644.72x = 4,829,952,870.37
5. Step 5: Solve for x
   x = 4,829,952,870.37/67,644.72
6. Step 6: Final answer
   x = 71,401.77