Finding the Fourth Proportional to 43,946.72, 65,931.27 and 12,781.96

Step by Step Solution

1. Step 1: Write the proportion equation
   43,946.72 : 65,931.27 = 12,781.96 : x
2. Step 2: Convert to fraction form
   43,946.72/65,931.27 = 12,781.96/x
3. Step 3: Cross multiply
   43,946.72x = 65,931.27 × 12,781.96
4. Step 4: Simplify right side
   43,946.72x = 842,730,855.89
5. Step 5: Solve for x
   x = 842,730,855.89/43,946.72
6. Step 6: Final answer
   x = 19,176.19