Finding the Fourth Proportional to 137,550.72, 189,853.76 and 83,865.34

Step by Step Solution

1. Step 1: Write the proportion equation
   137,550.72 : 189,853.76 = 83,865.34 : x
2. Step 2: Convert to fraction form
   137,550.72/189,853.76 = 83,865.34/x
3. Step 3: Cross multiply
   137,550.72x = 189,853.76 × 83,865.34
4. Step 4: Simplify right side
   137,550.72x = 15,922,150,132.68
5. Step 5: Solve for x
   x = 15,922,150,132.68/137,550.72
6. Step 6: Final answer
   x = 115,754.76