Finding the Fourth Proportional to 31,498.98, 43,394.64 and 21,922.44

Step by Step Solution

1. Step 1: Write the proportion equation
   31,498.98 : 43,394.64 = 21,922.44 : x
2. Step 2: Convert to fraction form
   31,498.98/43,394.64 = 21,922.44/x
3. Step 3: Cross multiply
   31,498.98x = 43,394.64 × 21,922.44
4. Step 4: Simplify right side
   31,498.98x = 951,316,391.72
5. Step 5: Solve for x
   x = 951,316,391.72/31,498.98
6. Step 6: Final answer
   x = 30,201.50