Finding the Fourth Proportional to 123,619.91, 170,566.85 and 83,408.27

Step by Step Solution

1. Step 1: Write the proportion equation
   123,619.91 : 170,566.85 = 83,408.27 : x
2. Step 2: Convert to fraction form
   123,619.91/170,566.85 = 83,408.27/x
3. Step 3: Cross multiply
   123,619.91x = 170,566.85 × 83,408.27
4. Step 4: Simplify right side
   123,619.91x = 14,226,685,233.54
5. Step 5: Solve for x
   x = 14,226,685,233.54/123,619.91
6. Step 6: Final answer
   x = 115,084.10