Finding the Fourth Proportional to 43,548.72, 65,328.80 and 13,956.72

Step by Step Solution

1. Step 1: Write the proportion equation
   43,548.72 : 65,328.80 = 13,956.72 : x
2. Step 2: Convert to fraction form
   43,548.72/65,328.80 = 13,956.72/x
3. Step 3: Cross multiply
   43,548.72x = 65,328.80 × 13,956.72
4. Step 4: Simplify right side
   43,548.72x = 911,775,769.54
5. Step 5: Solve for x
   x = 911,775,769.54/43,548.72
6. Step 6: Final answer
   x = 20,936.91