Finding the Fourth Proportional to 47,744.28, 71,591.82 and 21,426.47

Step by Step Solution

1. Step 1: Write the proportion equation
   47,744.28 : 71,591.82 = 21,426.47 : x
2. Step 2: Convert to fraction form
   47,744.28/71,591.82 = 21,426.47/x
3. Step 3: Cross multiply
   47,744.28x = 71,591.82 × 21,426.47
4. Step 4: Simplify right side
   47,744.28x = 1,533,959,625.52
5. Step 5: Solve for x
   x = 1,533,959,625.52/47,744.28
6. Step 6: Final answer
   x = 32,128.66