Finding the Fourth Proportional to 67,728, 93,461.76 and 37,513.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67,728 : 93,461.76 = 37,513.20 : x
2. Step 2: Convert to fraction form
   67,728/93,461.76 = 37,513.20/x
3. Step 3: Cross multiply
   67,728x = 93,461.76 × 37,513.20
4. Step 4: Simplify right side
   67,728x = 3,506,049,695.23
5. Step 5: Solve for x
   x = 3,506,049,695.23/67,728
6. Step 6: Final answer
   x = 51,766.62