Finding the Fourth Proportional to 83,137.20, 124,669.35 and 33,200.70

Step by Step Solution

1. Step 1: Write the proportion equation
   83,137.20 : 124,669.35 = 33,200.70 : x
2. Step 2: Convert to fraction form
   83,137.20/124,669.35 = 33,200.70/x
3. Step 3: Cross multiply
   83,137.20x = 124,669.35 × 33,200.70
4. Step 4: Simplify right side
   83,137.20x = 4,139,109,688.55
5. Step 5: Solve for x
   x = 4,139,109,688.55/83,137.20
6. Step 6: Final answer
   x = 49,786.49