Finding the Fourth Proportional to 21,781.88, 32,668.89 and 5,771.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,781.88 : 32,668.89 = 5,771.52 : x
2. Step 2: Convert to fraction form
   21,781.88/32,668.89 = 5,771.52/x
3. Step 3: Cross multiply
   21,781.88x = 32,668.89 × 5,771.52
4. Step 4: Simplify right side
   21,781.88x = 188,549,152.01
5. Step 5: Solve for x
   x = 188,549,152.01/21,781.88
6. Step 6: Final answer
   x = 8,656.24