Finding the Fourth Proportional to 92,749.36, 139,016.58 and 42,724.48

Step by Step Solution

1. Step 1: Write the proportion equation
   92,749.36 : 139,016.58 = 42,724.48 : x
2. Step 2: Convert to fraction form
   92,749.36/139,016.58 = 42,724.48/x
3. Step 3: Cross multiply
   92,749.36x = 139,016.58 × 42,724.48
4. Step 4: Simplify right side
   92,749.36x = 5,939,411,091.88
5. Step 5: Solve for x
   x = 5,939,411,091.88/92,749.36
6. Step 6: Final answer
   x = 64,037.22