Finding the Fourth Proportional to 22,665,764.18, 31,279,863.56 and 12,745,768.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,665,764.18 : 31,279,863.56 = 12,745,768.92 : x
2. Step 2: Convert to fraction form
   22,665,764.18/31,279,863.56 = 12,745,768.92/x
3. Step 3: Cross multiply
   22,665,764.18x = 31,279,863.56 × 12,745,768.92
4. Step 4: Simplify right side
   22,665,764.18x = 398,685,912,721,159.69
5. Step 5: Solve for x
   x = 398,685,912,721,159.69/22,665,764.18
6. Step 6: Final answer
   x = 17,589,784.74