Finding the Fourth Proportional to 22,157,472.12, 30,582,413.32 and 12,993,067.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,157,472.12 : 30,582,413.32 = 12,993,067.32 : x
2. Step 2: Convert to fraction form
   22,157,472.12/30,582,413.32 = 12,993,067.32/x
3. Step 3: Cross multiply
   22,157,472.12x = 30,582,413.32 × 12,993,067.32
4. Step 4: Simplify right side
   22,157,472.12x = 397,359,355,074,824.69
5. Step 5: Solve for x
   x = 397,359,355,074,824.69/22,157,472.12
6. Step 6: Final answer
   x = 17,933,424.58