Finding the Fourth Proportional to 82,483.87, 123,724.71 and 20,154.91

Step by Step Solution

1. Step 1: Write the proportion equation
   82,483.87 : 123,724.71 = 20,154.91 : x
2. Step 2: Convert to fraction form
   82,483.87/123,724.71 = 20,154.91/x
3. Step 3: Cross multiply
   82,483.87x = 123,724.71 × 20,154.91
4. Step 4: Simplify right side
   82,483.87x = 2,493,660,394.83
5. Step 5: Solve for x
   x = 2,493,660,394.83/82,483.87
6. Step 6: Final answer
   x = 30,232.10