Finding the Fourth Proportional to 101,018.28, 139,401 and 55,076.92

Step by Step Solution

1. Step 1: Write the proportion equation
   101,018.28 : 139,401 = 55,076.92 : x
2. Step 2: Convert to fraction form
   101,018.28/139,401 = 55,076.92/x
3. Step 3: Cross multiply
   101,018.28x = 139,401 × 55,076.92
4. Step 4: Simplify right side
   101,018.28x = 7,677,777,724.92
5. Step 5: Solve for x
   x = 7,677,777,724.92/101,018.28
6. Step 6: Final answer
   x = 76,003.85