Finding the Fourth Proportional to 19,606,047.80, 29,382,167.22 and 12,404,690.10

Step by Step Solution

1. Step 1: Write the proportion equation
   19,606,047.80 : 29,382,167.22 = 12,404,690.10 : x
2. Step 2: Convert to fraction form
   19,606,047.80/29,382,167.22 = 12,404,690.10/x
3. Step 3: Cross multiply
   19,606,047.80x = 29,382,167.22 × 12,404,690.10
4. Step 4: Simplify right side
   19,606,047.80x = 364,476,678,797,288.56
5. Step 5: Solve for x
   x = 364,476,678,797,288.56/19,606,047.80
6. Step 6: Final answer
   x = 18,590,012.76