Finding the Fourth Proportional to 21,095.46, 29,109.78 and 11,663.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,095.46 : 29,109.78 = 11,663.82 : x
2. Step 2: Convert to fraction form
   21,095.46/29,109.78 = 11,663.82/x
3. Step 3: Cross multiply
   21,095.46x = 29,109.78 × 11,663.82
4. Step 4: Simplify right side
   21,095.46x = 339,531,234.16
5. Step 5: Solve for x
   x = 339,531,234.16/21,095.46
6. Step 6: Final answer
   x = 16,094.99