Finding the Fourth Proportional to 123,991.05, 185,982.48 and 53,870.37

Step by Step Solution

1. Step 1: Write the proportion equation
   123,991.05 : 185,982.48 = 53,870.37 : x
2. Step 2: Convert to fraction form
   123,991.05/185,982.48 = 53,870.37/x
3. Step 3: Cross multiply
   123,991.05x = 185,982.48 × 53,870.37
4. Step 4: Simplify right side
   123,991.05x = 10,018,944,313.68
5. Step 5: Solve for x
   x = 10,018,944,313.68/123,991.05
6. Step 6: Final answer
   x = 80,803.77