Finding the Fourth Proportional to 22,605,744.96, 31,194,978.84 and 12,816,847.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,605,744.96 : 31,194,978.84 = 12,816,847.80 : x
2. Step 2: Convert to fraction form
   22,605,744.96/31,194,978.84 = 12,816,847.80/x
3. Step 3: Cross multiply
   22,605,744.96x = 31,194,978.84 × 12,816,847.80
4. Step 4: Simplify right side
   22,605,744.96x = 399,821,295,916,500.56
5. Step 5: Solve for x
   x = 399,821,295,916,500.56/22,605,744.96
6. Step 6: Final answer
   x = 17,686,711.79