Finding the Fourth Proportional to 123,914.70, 170,613.81 and 109,363.86

Step by Step Solution

1. Step 1: Write the proportion equation
   123,914.70 : 170,613.81 = 109,363.86 : x
2. Step 2: Convert to fraction form
   123,914.70/170,613.81 = 109,363.86/x
3. Step 3: Cross multiply
   123,914.70x = 170,613.81 × 109,363.86
4. Step 4: Simplify right side
   123,914.70x = 18,658,984,830.91
5. Step 5: Solve for x
   x = 18,658,984,830.91/123,914.70
6. Step 6: Final answer
   x = 150,579.27