Finding the Fourth Proportional to 21,047.51, 29,049.33 and 12,550.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,047.51 : 29,049.33 = 12,550.18 : x
2. Step 2: Convert to fraction form
   21,047.51/29,049.33 = 12,550.18/x
3. Step 3: Cross multiply
   21,047.51x = 29,049.33 × 12,550.18
4. Step 4: Simplify right side
   21,047.51x = 364,574,320.38
5. Step 5: Solve for x
   x = 364,574,320.38/21,047.51
6. Step 6: Final answer
   x = 17,321.49