Finding the Fourth Proportional to 83,131.92, 124,701.58 and 30,512.70

Step by Step Solution

1. Step 1: Write the proportion equation
   83,131.92 : 124,701.58 = 30,512.70 : x
2. Step 2: Convert to fraction form
   83,131.92/124,701.58 = 30,512.70/x
3. Step 3: Cross multiply
   83,131.92x = 124,701.58 × 30,512.70
4. Step 4: Simplify right side
   83,131.92x = 3,804,981,900.07
5. Step 5: Solve for x
   x = 3,804,981,900.07/83,131.92
6. Step 6: Final answer
   x = 45,770.41