Finding the Fourth Proportional to 123,707.50, 185,315.49 and 61,187.18

Step by Step Solution

1. Step 1: Write the proportion equation
   123,707.50 : 185,315.49 = 61,187.18 : x
2. Step 2: Convert to fraction form
   123,707.50/185,315.49 = 61,187.18/x
3. Step 3: Cross multiply
   123,707.50x = 185,315.49 × 61,187.18
4. Step 4: Simplify right side
   123,707.50x = 11,338,932,243.42
5. Step 5: Solve for x
   x = 11,338,932,243.42/123,707.50
6. Step 6: Final answer
   x = 91,659.21