Finding the Fourth Proportional to 21,566.86, 29,758.38 and 12,367.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,566.86 : 29,758.38 = 12,367.69 : x
2. Step 2: Convert to fraction form
   21,566.86/29,758.38 = 12,367.69/x
3. Step 3: Cross multiply
   21,566.86x = 29,758.38 × 12,367.69
4. Step 4: Simplify right side
   21,566.86x = 368,042,418.74
5. Step 5: Solve for x
   x = 368,042,418.74/21,566.86
6. Step 6: Final answer
   x = 17,065.18