Finding the Fourth Proportional to 104,885.11, 157,196.28 and 82,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   104,885.11 : 157,196.28 = 82,610.50 : x
2. Step 2: Convert to fraction form
   104,885.11/157,196.28 = 82,610.50/x
3. Step 3: Cross multiply
   104,885.11x = 157,196.28 × 82,610.50
4. Step 4: Simplify right side
   104,885.11x = 12,986,063,288.94
5. Step 5: Solve for x
   x = 12,986,063,288.94/104,885.11
6. Step 6: Final answer
   x = 123,812.27