Finding the Fourth Proportional to 43,567.72, 65,345.39 and 13,981.73

Step by Step Solution

1. Step 1: Write the proportion equation
   43,567.72 : 65,345.39 = 13,981.73 : x
2. Step 2: Convert to fraction form
   43,567.72/65,345.39 = 13,981.73/x
3. Step 3: Cross multiply
   43,567.72x = 65,345.39 × 13,981.73
4. Step 4: Simplify right side
   43,567.72x = 913,641,599.72
5. Step 5: Solve for x
   x = 913,641,599.72/43,567.72
6. Step 6: Final answer
   x = 20,970.61