Finding the Fourth Proportional to 21,441.90, 32,173.82 and 10,209.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,441.90 : 32,173.82 = 10,209.94 : x
2. Step 2: Convert to fraction form
   21,441.90/32,173.82 = 10,209.94/x
3. Step 3: Cross multiply
   21,441.90x = 32,173.82 × 10,209.94
4. Step 4: Simplify right side
   21,441.90x = 328,492,771.77
5. Step 5: Solve for x
   x = 328,492,771.77/21,441.90
6. Step 6: Final answer
   x = 15,320.13