Finding the Fourth Proportional to 22,978,687.69, 31,710,653.31 and 12,665,451.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,978,687.69 : 31,710,653.31 = 12,665,451.79 : x
2. Step 2: Convert to fraction form
   22,978,687.69/31,710,653.31 = 12,665,451.79/x
3. Step 3: Cross multiply
   22,978,687.69x = 31,710,653.31 × 12,665,451.79
4. Step 4: Simplify right side
   22,978,687.69x = 401,629,750,727,208.88
5. Step 5: Solve for x
   x = 401,629,750,727,208.88/22,978,687.69
6. Step 6: Final answer
   x = 17,478,358.91