Finding the Fourth Proportional to 82,950.93, 124,426.31 and 20,621.43

Step by Step Solution

1. Step 1: Write the proportion equation
   82,950.93 : 124,426.31 = 20,621.43 : x
2. Step 2: Convert to fraction form
   82,950.93/124,426.31 = 20,621.43/x
3. Step 3: Cross multiply
   82,950.93x = 124,426.31 × 20,621.43
4. Step 4: Simplify right side
   82,950.93x = 2,565,848,338.72
5. Step 5: Solve for x
   x = 2,565,848,338.72/82,950.93
6. Step 6: Final answer
   x = 30,932.12