Finding the Fourth Proportional to 21,659.32, 32,488.92 and 17,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,659.32 : 32,488.92 = 17,722.72 : x
2. Step 2: Convert to fraction form
   21,659.32/32,488.92 = 17,722.72/x
3. Step 3: Cross multiply
   21,659.32x = 32,488.92 × 17,722.72
4. Step 4: Simplify right side
   21,659.32x = 575,792,032.26
5. Step 5: Solve for x
   x = 575,792,032.26/21,659.32
6. Step 6: Final answer
   x = 26,584.03