Finding the Fourth Proportional to 21,773.34, 30,062.61 and 16,998.66

Step by Step Solution

1. Step 1: Write the proportion equation
   21,773.34 : 30,062.61 = 16,998.66 : x
2. Step 2: Convert to fraction form
   21,773.34/30,062.61 = 16,998.66/x
3. Step 3: Cross multiply
   21,773.34x = 30,062.61 × 16,998.66
4. Step 4: Simplify right side
   21,773.34x = 511,024,086.10
5. Step 5: Solve for x
   x = 511,024,086.10/21,773.34
6. Step 6: Final answer
   x = 23,470.17