Finding the Fourth Proportional to 135,505.50, 186,997.59 and 82,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   135,505.50 : 186,997.59 = 82,513.50 : x
2. Step 2: Convert to fraction form
   135,505.50/186,997.59 = 82,513.50/x
3. Step 3: Cross multiply
   135,505.50x = 186,997.59 × 82,513.50
4. Step 4: Simplify right side
   135,505.50x = 15,429,825,642.47
5. Step 5: Solve for x
   x = 15,429,825,642.47/135,505.50
6. Step 6: Final answer
   x = 113,868.63