Finding the Fourth Proportional to 123,317.14, 170,181.06 and 74,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,317.14 : 170,181.06 = 74,902.72 : x
2. Step 2: Convert to fraction form
   123,317.14/170,181.06 = 74,902.72/x
3. Step 3: Cross multiply
   123,317.14x = 170,181.06 × 74,902.72
4. Step 4: Simplify right side
   123,317.14x = 12,747,024,286.48
5. Step 5: Solve for x
   x = 12,747,024,286.48/123,317.14
6. Step 6: Final answer
   x = 103,367.82