Finding the Fourth Proportional to 21,573.78, 32,360.64 and 5,991.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,573.78 : 32,360.64 = 5,991.42 : x
2. Step 2: Convert to fraction form
   21,573.78/32,360.64 = 5,991.42/x
3. Step 3: Cross multiply
   21,573.78x = 32,360.64 × 5,991.42
4. Step 4: Simplify right side
   21,573.78x = 193,886,185.71
5. Step 5: Solve for x
   x = 193,886,185.71/21,573.78
6. Step 6: Final answer
   x = 8,987.12