Finding the Fourth Proportional to 21,960.77, 32,899.82 and 10,854.45

Step by Step Solution

1. Step 1: Write the proportion equation
   21,960.77 : 32,899.82 = 10,854.45 : x
2. Step 2: Convert to fraction form
   21,960.77/32,899.82 = 10,854.45/x
3. Step 3: Cross multiply
   21,960.77x = 32,899.82 × 10,854.45
4. Step 4: Simplify right side
   21,960.77x = 357,109,396.93
5. Step 5: Solve for x
   x = 357,109,396.93/21,960.77
6. Step 6: Final answer
   x = 16,261.25