Finding the Fourth Proportional to 22,749.96, 31,394.82 and 12,678.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,749.96 : 31,394.82 = 12,678.84 : x
2. Step 2: Convert to fraction form
   22,749.96/31,394.82 = 12,678.84/x
3. Step 3: Cross multiply
   22,749.96x = 31,394.82 × 12,678.84
4. Step 4: Simplify right side
   22,749.96x = 398,049,899.61
5. Step 5: Solve for x
   x = 398,049,899.61/22,749.96
6. Step 6: Final answer
   x = 17,496.73