Finding the Fourth Proportional to 82,499.19, 123,728.95 and 38,083.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,499.19 : 123,728.95 = 38,083.28 : x
2. Step 2: Convert to fraction form
   82,499.19/123,728.95 = 38,083.28/x
3. Step 3: Cross multiply
   82,499.19x = 123,728.95 × 38,083.28
4. Step 4: Simplify right side
   82,499.19x = 4,712,003,675.92
5. Step 5: Solve for x
   x = 4,712,003,675.92/82,499.19
6. Step 6: Final answer
   x = 57,115.76