Finding the Fourth Proportional to 83,768.57, 125,693.86 and 39,399.81

Step by Step Solution

1. Step 1: Write the proportion equation
   83,768.57 : 125,693.86 = 39,399.81 : x
2. Step 2: Convert to fraction form
   83,768.57/125,693.86 = 39,399.81/x
3. Step 3: Cross multiply
   83,768.57x = 125,693.86 × 39,399.81
4. Step 4: Simplify right side
   83,768.57x = 4,952,314,202.17
5. Step 5: Solve for x
   x = 4,952,314,202.17/83,768.57
6. Step 6: Final answer
   x = 59,119.00