Finding the Fourth Proportional to 101,105.73, 139,525.51 and 55,786.53

Step by Step Solution

1. Step 1: Write the proportion equation
   101,105.73 : 139,525.51 = 55,786.53 : x
2. Step 2: Convert to fraction form
   101,105.73/139,525.51 = 55,786.53/x
3. Step 3: Cross multiply
   101,105.73x = 139,525.51 × 55,786.53
4. Step 4: Simplify right side
   101,105.73x = 7,783,644,049.38
5. Step 5: Solve for x
   x = 7,783,644,049.38/101,105.73
6. Step 6: Final answer
   x = 76,985.19