Finding the Fourth Proportional to 82,638.48, 123,888.72 and 38,297.04

Step by Step Solution

1. Step 1: Write the proportion equation
   82,638.48 : 123,888.72 = 38,297.04 : x
2. Step 2: Convert to fraction form
   82,638.48/123,888.72 = 38,297.04/x
3. Step 3: Cross multiply
   82,638.48x = 123,888.72 × 38,297.04
4. Step 4: Simplify right side
   82,638.48x = 4,744,571,265.39
5. Step 5: Solve for x
   x = 4,744,571,265.39/82,638.48
6. Step 6: Final answer
   x = 57,413.58