Finding the Fourth Proportional to 83,635.49, 115,439.10 and 51,786.29

Step by Step Solution

1. Step 1: Write the proportion equation
   83,635.49 : 115,439.10 = 51,786.29 : x
2. Step 2: Convert to fraction form
   83,635.49/115,439.10 = 51,786.29/x
3. Step 3: Cross multiply
   83,635.49x = 115,439.10 × 51,786.29
4. Step 4: Simplify right side
   83,635.49x = 5,978,162,709.94
5. Step 5: Solve for x
   x = 5,978,162,709.94/83,635.49
6. Step 6: Final answer
   x = 71,478.78