Finding the Fourth Proportional to 92,695.60, 139,021.62 and 42,744.52

Step by Step Solution

1. Step 1: Write the proportion equation
   92,695.60 : 139,021.62 = 42,744.52 : x
2. Step 2: Convert to fraction form
   92,695.60/139,021.62 = 42,744.52/x
3. Step 3: Cross multiply
   92,695.60x = 139,021.62 × 42,744.52
4. Step 4: Simplify right side
   92,695.60x = 5,942,412,416.52
5. Step 5: Solve for x
   x = 5,942,412,416.52/92,695.60
6. Step 6: Final answer
   x = 64,106.74