Finding the Fourth Proportional to 70,726.73, 105,993.45 and 39,089.94

Step by Step Solution

1. Step 1: Write the proportion equation
   70,726.73 : 105,993.45 = 39,089.94 : x
2. Step 2: Convert to fraction form
   70,726.73/105,993.45 = 39,089.94/x
3. Step 3: Cross multiply
   70,726.73x = 105,993.45 × 39,089.94
4. Step 4: Simplify right side
   70,726.73x = 4,143,277,600.89
5. Step 5: Solve for x
   x = 4,143,277,600.89/70,726.73
6. Step 6: Final answer
   x = 58,581.50