Finding the Fourth Proportional to 39,227.74, 54,134.17 and 21,322.59

Step by Step Solution

1. Step 1: Write the proportion equation
   39,227.74 : 54,134.17 = 21,322.59 : x
2. Step 2: Convert to fraction form
   39,227.74/54,134.17 = 21,322.59/x
3. Step 3: Cross multiply
   39,227.74x = 54,134.17 × 21,322.59
4. Step 4: Simplify right side
   39,227.74x = 1,154,280,880.03
5. Step 5: Solve for x
   x = 1,154,280,880.03/39,227.74
6. Step 6: Final answer
   x = 29,425.12