Finding the Fourth Proportional to 21,805,367.79, 30,091,609.33 and 12,016,162.28

Step by Step Solution

1. Step 1: Write the proportion equation
   21,805,367.79 : 30,091,609.33 = 12,016,162.28 : x
2. Step 2: Convert to fraction form
   21,805,367.79/30,091,609.33 = 12,016,162.28/x
3. Step 3: Cross multiply
   21,805,367.79x = 30,091,609.33 × 12,016,162.28
4. Step 4: Simplify right side
   21,805,367.79x = 361,585,661,009,469.56
5. Step 5: Solve for x
   x = 361,585,661,009,469.56/21,805,367.79
6. Step 6: Final answer
   x = 16,582,415.14