Finding the Fourth Proportional to 101,105.22, 139,533.03 and 55,792.20

Step by Step Solution

1. Step 1: Write the proportion equation
   101,105.22 : 139,533.03 = 55,792.20 : x
2. Step 2: Convert to fraction form
   101,105.22/139,533.03 = 55,792.20/x
3. Step 3: Cross multiply
   101,105.22x = 139,533.03 × 55,792.20
4. Step 4: Simplify right side
   101,105.22x = 7,784,854,716.37
5. Step 5: Solve for x
   x = 7,784,854,716.37/101,105.22
6. Step 6: Final answer
   x = 76,997.55