Finding the Fourth Proportional to 83,913.92, 125,782.72 and 42,273.60

Step by Step Solution

1. Step 1: Write the proportion equation
   83,913.92 : 125,782.72 = 42,273.60 : x
2. Step 2: Convert to fraction form
   83,913.92/125,782.72 = 42,273.60/x
3. Step 3: Cross multiply
   83,913.92x = 125,782.72 × 42,273.60
4. Step 4: Simplify right side
   83,913.92x = 5,317,288,392.19
5. Step 5: Solve for x
   x = 5,317,288,392.19/83,913.92
6. Step 6: Final answer
   x = 63,365.99