Finding the Fourth Proportional to 21,805,369.69, 30,091,611.96 and 12,016,164.19

Step by Step Solution

1. Step 1: Write the proportion equation
   21,805,369.69 : 30,091,611.96 = 12,016,164.19 : x
2. Step 2: Convert to fraction form
   21,805,369.69/30,091,611.96 = 12,016,164.19/x
3. Step 3: Cross multiply
   21,805,369.69x = 30,091,611.96 × 12,016,164.19
4. Step 4: Simplify right side
   21,805,369.69x = 361,585,750,053,127.69
5. Step 5: Solve for x
   x = 361,585,750,053,127.69/21,805,369.69
6. Step 6: Final answer
   x = 16,582,417.78