Finding the Fourth Proportional to 19,815,990, 29,728,978.92 and 5,632,566

Step by Step Solution

1. Step 1: Write the proportion equation
   19,815,990 : 29,728,978.92 = 5,632,566 : x
2. Step 2: Convert to fraction form
   19,815,990/29,728,978.92 = 5,632,566/x
3. Step 3: Cross multiply
   19,815,990x = 29,728,978.92 × 5,632,566
4. Step 4: Simplify right side
   19,815,990x = 167,450,435,879,508.72
5. Step 5: Solve for x
   x = 167,450,435,879,508.72/19,815,990
6. Step 6: Final answer
   x = 8,450,268.49