Finding the Fourth Proportional to 43,242.54, 64,871.91 and 13,667.82

Step by Step Solution

1. Step 1: Write the proportion equation
   43,242.54 : 64,871.91 = 13,667.82 : x
2. Step 2: Convert to fraction form
   43,242.54/64,871.91 = 13,667.82/x
3. Step 3: Cross multiply
   43,242.54x = 64,871.91 × 13,667.82
4. Step 4: Simplify right side
   43,242.54x = 886,657,588.94
5. Step 5: Solve for x
   x = 886,657,588.94/43,242.54
6. Step 6: Final answer
   x = 20,504.29