Finding the Fourth Proportional to 21,805,372.79, 30,091,616.25 and 12,016,167.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,805,372.79 : 30,091,616.25 = 12,016,167.30 : x
2. Step 2: Convert to fraction form
   21,805,372.79/30,091,616.25 = 12,016,167.30/x
3. Step 3: Cross multiply
   21,805,372.79x = 30,091,616.25 × 12,016,167.30
4. Step 4: Simplify right side
   21,805,372.79x = 361,585,895,209,916.94
5. Step 5: Solve for x
   x = 361,585,895,209,916.94/21,805,372.79
6. Step 6: Final answer
   x = 16,582,422.08