Finding the Fourth Proportional to 101,015.07, 139,401.78 and 55,694.83

Step by Step Solution

1. Step 1: Write the proportion equation
   101,015.07 : 139,401.78 = 55,694.83 : x
2. Step 2: Convert to fraction form
   101,015.07/139,401.78 = 55,694.83/x
3. Step 3: Cross multiply
   101,015.07x = 139,401.78 × 55,694.83
4. Step 4: Simplify right side
   101,015.07x = 7,763,958,438.80
5. Step 5: Solve for x
   x = 7,763,958,438.80/101,015.07
6. Step 6: Final answer
   x = 76,859.41