Finding the Fourth Proportional to 21,899.18, 32,873.34 and 8,760.71

Step by Step Solution

1. Step 1: Write the proportion equation
   21,899.18 : 32,873.34 = 8,760.71 : x
2. Step 2: Convert to fraction form
   21,899.18/32,873.34 = 8,760.71/x
3. Step 3: Cross multiply
   21,899.18x = 32,873.34 × 8,760.71
4. Step 4: Simplify right side
   21,899.18x = 287,993,798.47
5. Step 5: Solve for x
   x = 287,993,798.47/21,899.18
6. Step 6: Final answer
   x = 13,150.89