Finding the Fourth Proportional to 22,768.56, 31,417.52 and 12,695.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,768.56 : 31,417.52 = 12,695.76 : x
2. Step 2: Convert to fraction form
   22,768.56/31,417.52 = 12,695.76/x
3. Step 3: Cross multiply
   22,768.56x = 31,417.52 × 12,695.76
4. Step 4: Simplify right side
   22,768.56x = 398,869,293.72
5. Step 5: Solve for x
   x = 398,869,293.72/22,768.56
6. Step 6: Final answer
   x = 17,518.42