Finding the Fourth Proportional to 83,020.40, 124,456.62 and 30,417.56

Step by Step Solution

1. Step 1: Write the proportion equation
   83,020.40 : 124,456.62 = 30,417.56 : x
2. Step 2: Convert to fraction form
   83,020.40/124,456.62 = 30,417.56/x
3. Step 3: Cross multiply
   83,020.40x = 124,456.62 × 30,417.56
4. Step 4: Simplify right side
   83,020.40x = 3,785,666,706.25
5. Step 5: Solve for x
   x = 3,785,666,706.25/83,020.40
6. Step 6: Final answer
   x = 45,599.23