Finding the Fourth Proportional to 82,858.71, 124,220.55 and 38,513.37

Step by Step Solution

1. Step 1: Write the proportion equation
   82,858.71 : 124,220.55 = 38,513.37 : x
2. Step 2: Convert to fraction form
   82,858.71/124,220.55 = 38,513.37/x
3. Step 3: Cross multiply
   82,858.71x = 124,220.55 × 38,513.37
4. Step 4: Simplify right side
   82,858.71x = 4,784,152,003.75
5. Step 5: Solve for x
   x = 4,784,152,003.75/82,858.71
6. Step 6: Final answer
   x = 57,738.67