Finding the Fourth Proportional to 21,447.88, 32,172.72 and 5,865.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,447.88 : 32,172.72 = 5,865.48 : x
2. Step 2: Convert to fraction form
   21,447.88/32,172.72 = 5,865.48/x
3. Step 3: Cross multiply
   21,447.88x = 32,172.72 × 5,865.48
4. Step 4: Simplify right side
   21,447.88x = 188,708,445.71
5. Step 5: Solve for x
   x = 188,708,445.71/21,447.88
6. Step 6: Final answer
   x = 8,798.47