Finding the Fourth Proportional to 21,468.72, 32,184.72 and 8,330.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,468.72 : 32,184.72 = 8,330.52 : x
2. Step 2: Convert to fraction form
   21,468.72/32,184.72 = 8,330.52/x
3. Step 3: Cross multiply
   21,468.72x = 32,184.72 × 8,330.52
4. Step 4: Simplify right side
   21,468.72x = 268,115,453.65
5. Step 5: Solve for x
   x = 268,115,453.65/21,468.72
6. Step 6: Final answer
   x = 12,488.66