Finding the Fourth Proportional to 23,276.72, 32,121.98 and 12,666.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,276.72 : 32,121.98 = 12,666.28 : x
2. Step 2: Convert to fraction form
   23,276.72/32,121.98 = 12,666.28/x
3. Step 3: Cross multiply
   23,276.72x = 32,121.98 × 12,666.28
4. Step 4: Simplify right side
   23,276.72x = 406,865,992.83
5. Step 5: Solve for x
   x = 406,865,992.83/23,276.72
6. Step 6: Final answer
   x = 17,479.52