Finding the Fourth Proportional to 92,743, 139,000.47 and 42,753.76

Step by Step Solution

1. Step 1: Write the proportion equation
   92,743 : 139,000.47 = 42,753.76 : x
2. Step 2: Convert to fraction form
   92,743/139,000.47 = 42,753.76/x
3. Step 3: Cross multiply
   92,743x = 139,000.47 × 42,753.76
4. Step 4: Simplify right side
   92,743x = 5,942,792,734.27
5. Step 5: Solve for x
   x = 5,942,792,734.27/92,743
6. Step 6: Final answer
   x = 64,078.07