Finding the Fourth Proportional to 21,404.58, 32,093.20 and 10,289.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,404.58 : 32,093.20 = 10,289.16 : x
2. Step 2: Convert to fraction form
   21,404.58/32,093.20 = 10,289.16/x
3. Step 3: Cross multiply
   21,404.58x = 32,093.20 × 10,289.16
4. Step 4: Simplify right side
   21,404.58x = 330,212,069.71
5. Step 5: Solve for x
   x = 330,212,069.71/21,404.58
6. Step 6: Final answer
   x = 15,427.17