Finding the Fourth Proportional to 21,406.72, 32,096.32 and 10,298.88

Step by Step Solution

1. Step 1: Write the proportion equation
   21,406.72 : 32,096.32 = 10,298.88 : x
2. Step 2: Convert to fraction form
   21,406.72/32,096.32 = 10,298.88/x
3. Step 3: Cross multiply
   21,406.72x = 32,096.32 × 10,298.88
4. Step 4: Simplify right side
   21,406.72x = 330,556,148.12
5. Step 5: Solve for x
   x = 330,556,148.12/21,406.72
6. Step 6: Final answer
   x = 15,441.70