Finding the Fourth Proportional to 15,322.32, 21,144.51 and 8,607.96

Step by Step Solution

1. Step 1: Write the proportion equation
   15,322.32 : 21,144.51 = 8,607.96 : x
2. Step 2: Convert to fraction form
   15,322.32/21,144.51 = 8,607.96/x
3. Step 3: Cross multiply
   15,322.32x = 21,144.51 × 8,607.96
4. Step 4: Simplify right side
   15,322.32x = 182,011,096.30
5. Step 5: Solve for x
   x = 182,011,096.30/15,322.32
6. Step 6: Final answer
   x = 11,878.82