Finding the Fourth Proportional to 43,470.39, 65,173.69 and 13,871.17

Step by Step Solution

1. Step 1: Write the proportion equation
   43,470.39 : 65,173.69 = 13,871.17 : x
2. Step 2: Convert to fraction form
   43,470.39/65,173.69 = 13,871.17/x
3. Step 3: Cross multiply
   43,470.39x = 65,173.69 × 13,871.17
4. Step 4: Simplify right side
   43,470.39x = 904,035,333.52
5. Step 5: Solve for x
   x = 904,035,333.52/43,470.39
6. Step 6: Final answer
   x = 20,796.58