Finding the Fourth Proportional to 19,682,143.07, 29,499,279.30 and 13,926,535.25

Step by Step Solution

1. Step 1: Write the proportion equation
   19,682,143.07 : 29,499,279.30 = 13,926,535.25 : x
2. Step 2: Convert to fraction form
   19,682,143.07/29,499,279.30 = 13,926,535.25/x
3. Step 3: Cross multiply
   19,682,143.07x = 29,499,279.30 × 13,926,535.25
4. Step 4: Simplify right side
   19,682,143.07x = 410,822,752,873,548.94
5. Step 5: Solve for x
   x = 410,822,752,873,548.94/19,682,143.07
6. Step 6: Final answer
   x = 20,872,866.92