Finding the Fourth Proportional to 215,471.42, 323,182.41 and 82,348.72

Step by Step Solution

1. Step 1: Write the proportion equation
   215,471.42 : 323,182.41 = 82,348.72 : x
2. Step 2: Convert to fraction form
   215,471.42/323,182.41 = 82,348.72/x
3. Step 3: Cross multiply
   215,471.42x = 323,182.41 × 82,348.72
4. Step 4: Simplify right side
   215,471.42x = 26,613,657,790.02
5. Step 5: Solve for x
   x = 26,613,657,790.02/215,471.42
6. Step 6: Final answer
   x = 123,513.63