Finding the Fourth Proportional to 21,401.35, 32,081.15 and 8,924.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,401.35 : 32,081.15 = 8,924.94 : x
2. Step 2: Convert to fraction form
   21,401.35/32,081.15 = 8,924.94/x
3. Step 3: Cross multiply
   21,401.35x = 32,081.15 × 8,924.94
4. Step 4: Simplify right side
   21,401.35x = 286,322,361.19
5. Step 5: Solve for x
   x = 286,322,361.19/21,401.35
6. Step 6: Final answer
   x = 13,378.71