Finding the Fourth Proportional to 123,899.49, 170,982.50 and 67,311.27

Step by Step Solution

1. Step 1: Write the proportion equation
   123,899.49 : 170,982.50 = 67,311.27 : x
2. Step 2: Convert to fraction form
   123,899.49/170,982.50 = 67,311.27/x
3. Step 3: Cross multiply
   123,899.49x = 170,982.50 × 67,311.27
4. Step 4: Simplify right side
   123,899.49x = 11,509,048,886.22
5. Step 5: Solve for x
   x = 11,509,048,886.22/123,899.49
6. Step 6: Final answer
   x = 92,890.20