Finding the Fourth Proportional to 21,077.01, 29,083.32 and 12,123.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,077.01 : 29,083.32 = 12,123.27 : x
2. Step 2: Convert to fraction form
   21,077.01/29,083.32 = 12,123.27/x
3. Step 3: Cross multiply
   21,077.01x = 29,083.32 × 12,123.27
4. Step 4: Simplify right side
   21,077.01x = 352,584,940.86
5. Step 5: Solve for x
   x = 352,584,940.86/21,077.01
6. Step 6: Final answer
   x = 16,728.41