Finding the Fourth Proportional to 101,105.60, 139,525.34 and 55,786.41

Step by Step Solution

1. Step 1: Write the proportion equation
   101,105.60 : 139,525.34 = 55,786.41 : x
2. Step 2: Convert to fraction form
   101,105.60/139,525.34 = 55,786.41/x
3. Step 3: Cross multiply
   101,105.60x = 139,525.34 × 55,786.41
4. Step 4: Simplify right side
   101,105.60x = 7,783,617,822.63
5. Step 5: Solve for x
   x = 7,783,617,822.63/101,105.60
6. Step 6: Final answer
   x = 76,985.03