Finding the Fourth Proportional to 21,462.03, 32,187.24 and 8,979.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,462.03 : 32,187.24 = 8,979.50 : x
2. Step 2: Convert to fraction form
   21,462.03/32,187.24 = 8,979.50/x
3. Step 3: Cross multiply
   21,462.03x = 32,187.24 × 8,979.50
4. Step 4: Simplify right side
   21,462.03x = 289,025,321.58
5. Step 5: Solve for x
   x = 289,025,321.58/21,462.03
6. Step 6: Final answer
   x = 13,466.82