Finding the Fourth Proportional to 21,164.30, 29,200.82 and 16,674.13

Step by Step Solution

1. Step 1: Write the proportion equation
   21,164.30 : 29,200.82 = 16,674.13 : x
2. Step 2: Convert to fraction form
   21,164.30/29,200.82 = 16,674.13/x
3. Step 3: Cross multiply
   21,164.30x = 29,200.82 × 16,674.13
4. Step 4: Simplify right side
   21,164.30x = 486,898,112.41
5. Step 5: Solve for x
   x = 486,898,112.41/21,164.30
6. Step 6: Final answer
   x = 23,005.64