Finding the Fourth Proportional to 39,222.31, 58,819.23 and 21,466.09

Step by Step Solution

1. Step 1: Write the proportion equation
   39,222.31 : 58,819.23 = 21,466.09 : x
2. Step 2: Convert to fraction form
   39,222.31/58,819.23 = 21,466.09/x
3. Step 3: Cross multiply
   39,222.31x = 58,819.23 × 21,466.09
4. Step 4: Simplify right side
   39,222.31x = 1,262,618,884.91
5. Step 5: Solve for x
   x = 1,262,618,884.91/39,222.31
6. Step 6: Final answer
   x = 32,191.34