Finding the Fourth Proportional to 32,822.28, 45,279 and 21,487.68

Step by Step Solution

1. Step 1: Write the proportion equation
   32,822.28 : 45,279 = 21,487.68 : x
2. Step 2: Convert to fraction form
   32,822.28/45,279 = 21,487.68/x
3. Step 3: Cross multiply
   32,822.28x = 45,279 × 21,487.68
4. Step 4: Simplify right side
   32,822.28x = 972,940,662.72
5. Step 5: Solve for x
   x = 972,940,662.72/32,822.28
6. Step 6: Final answer
   x = 29,642.69