Finding the Fourth Proportional to 82,936.72, 114,453.06 and 47,128.66

Step by Step Solution

1. Step 1: Write the proportion equation
   82,936.72 : 114,453.06 = 47,128.66 : x
2. Step 2: Convert to fraction form
   82,936.72/114,453.06 = 47,128.66/x
3. Step 3: Cross multiply
   82,936.72x = 114,453.06 × 47,128.66
4. Step 4: Simplify right side
   82,936.72x = 5,394,019,350.70
5. Step 5: Solve for x
   x = 5,394,019,350.70/82,936.72
6. Step 6: Final answer
   x = 65,037.77