Finding the Fourth Proportional to 209,593.50, 289,238.55 and 114,100.86

Step by Step Solution

1. Step 1: Write the proportion equation
   209,593.50 : 289,238.55 = 114,100.86 : x
2. Step 2: Convert to fraction form
   209,593.50/289,238.55 = 114,100.86/x
3. Step 3: Cross multiply
   209,593.50x = 289,238.55 × 114,100.86
4. Step 4: Simplify right side
   209,593.50x = 33,002,367,300.15
5. Step 5: Solve for x
   x = 33,002,367,300.15/209,593.50
6. Step 6: Final answer
   x = 157,458.93