Finding the Fourth Proportional to 43,069.82, 64,587.81 and 18,121.82

Step by Step Solution

1. Step 1: Write the proportion equation
   43,069.82 : 64,587.81 = 18,121.82 : x
2. Step 2: Convert to fraction form
   43,069.82/64,587.81 = 18,121.82/x
3. Step 3: Cross multiply
   43,069.82x = 64,587.81 × 18,121.82
4. Step 4: Simplify right side
   43,069.82x = 1,170,448,667.01
5. Step 5: Solve for x
   x = 1,170,448,667.01/43,069.82
6. Step 6: Final answer
   x = 27,175.61