Finding the Fourth Proportional to 21,488.16, 32,233.20 and 5,905.92

Step by Step Solution

1. Step 1: Write the proportion equation
   21,488.16 : 32,233.20 = 5,905.92 : x
2. Step 2: Convert to fraction form
   21,488.16/32,233.20 = 5,905.92/x
3. Step 3: Cross multiply
   21,488.16x = 32,233.20 × 5,905.92
4. Step 4: Simplify right side
   21,488.16x = 190,366,700.54
5. Step 5: Solve for x
   x = 190,366,700.54/21,488.16
6. Step 6: Final answer
   x = 8,859.14