Finding the Fourth Proportional to 92,738.20, 139,010.16 and 42,851.02

Step by Step Solution

1. Step 1: Write the proportion equation
   92,738.20 : 139,010.16 = 42,851.02 : x
2. Step 2: Convert to fraction form
   92,738.20/139,010.16 = 42,851.02/x
3. Step 3: Cross multiply
   92,738.20x = 139,010.16 × 42,851.02
4. Step 4: Simplify right side
   92,738.20x = 5,956,727,062.17
5. Step 5: Solve for x
   x = 5,956,727,062.17/92,738.20
6. Step 6: Final answer
   x = 64,231.65