Finding the Fourth Proportional to 82,516.52, 123,777.18 and 20,187

Step by Step Solution

1. Step 1: Write the proportion equation
   82,516.52 : 123,777.18 = 20,187 : x
2. Step 2: Convert to fraction form
   82,516.52/123,777.18 = 20,187/x
3. Step 3: Cross multiply
   82,516.52x = 123,777.18 × 20,187
4. Step 4: Simplify right side
   82,516.52x = 2,498,689,932.66
5. Step 5: Solve for x
   x = 2,498,689,932.66/82,516.52
6. Step 6: Final answer
   x = 30,281.09