Finding the Fourth Proportional to 101,015, 139,401.50 and 55,694.60

Step by Step Solution

1. Step 1: Write the proportion equation
   101,015 : 139,401.50 = 55,694.60 : x
2. Step 2: Convert to fraction form
   101,015/139,401.50 = 55,694.60/x
3. Step 3: Cross multiply
   101,015x = 139,401.50 × 55,694.60
4. Step 4: Simplify right side
   101,015x = 7,763,910,781.90
5. Step 5: Solve for x
   x = 7,763,910,781.90/101,015
6. Step 6: Final answer
   x = 76,858.99