Finding the Fourth Proportional to 21,448.47, 32,171.70 and 5,866.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,448.47 : 32,171.70 = 5,866.05 : x
2. Step 2: Convert to fraction form
   21,448.47/32,171.70 = 5,866.05/x
3. Step 3: Cross multiply
   21,448.47x = 32,171.70 × 5,866.05
4. Step 4: Simplify right side
   21,448.47x = 188,720,800.79
5. Step 5: Solve for x
   x = 188,720,800.79/21,448.47
6. Step 6: Final answer
   x = 8,798.80