Finding the Fourth Proportional to 60,786.72, 91,179.14 and 31,187.48

Step by Step Solution

1. Step 1: Write the proportion equation
   60,786.72 : 91,179.14 = 31,187.48 : x
2. Step 2: Convert to fraction form
   60,786.72/91,179.14 = 31,187.48/x
3. Step 3: Cross multiply
   60,786.72x = 91,179.14 × 31,187.48
4. Step 4: Simplify right side
   60,786.72x = 2,843,646,993.33
5. Step 5: Solve for x
   x = 2,843,646,993.33/60,786.72
6. Step 6: Final answer
   x = 46,780.73