Finding the Fourth Proportional to 21,614.65, 29,827.61 and 12,054.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,614.65 : 29,827.61 = 12,054.83 : x
2. Step 2: Convert to fraction form
   21,614.65/29,827.61 = 12,054.83/x
3. Step 3: Cross multiply
   21,614.65x = 29,827.61 × 12,054.83
4. Step 4: Simplify right side
   21,614.65x = 359,566,648.86
5. Step 5: Solve for x
   x = 359,566,648.86/21,614.65
6. Step 6: Final answer
   x = 16,635.32