Finding the Fourth Proportional to 21,341.86, 29,449.05 and 11,910.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,341.86 : 29,449.05 = 11,910.82 : x
2. Step 2: Convert to fraction form
   21,341.86/29,449.05 = 11,910.82/x
3. Step 3: Cross multiply
   21,341.86x = 29,449.05 × 11,910.82
4. Step 4: Simplify right side
   21,341.86x = 350,762,333.72
5. Step 5: Solve for x
   x = 350,762,333.72/21,341.86
6. Step 6: Final answer
   x = 16,435.42