Finding the Fourth Proportional to 82,865.19, 124,297.71 and 20,535.69

Step by Step Solution

1. Step 1: Write the proportion equation
   82,865.19 : 124,297.71 = 20,535.69 : x
2. Step 2: Convert to fraction form
   82,865.19/124,297.71 = 20,535.69/x
3. Step 3: Cross multiply
   82,865.19x = 124,297.71 × 20,535.69
4. Step 4: Simplify right side
   82,865.19x = 2,552,539,240.27
5. Step 5: Solve for x
   x = 2,552,539,240.27/82,865.19
6. Step 6: Final answer
   x = 30,803.52