Finding the Fourth Proportional to 209,667.60, 289,014.57 and 175,616.01

Step by Step Solution

1. Step 1: Write the proportion equation
   209,667.60 : 289,014.57 = 175,616.01 : x
2. Step 2: Convert to fraction form
   209,667.60/289,014.57 = 175,616.01/x
3. Step 3: Cross multiply
   209,667.60x = 289,014.57 × 175,616.01
4. Step 4: Simplify right side
   209,667.60x = 50,755,585,615.27
5. Step 5: Solve for x
   x = 50,755,585,615.27/209,667.60
6. Step 6: Final answer
   x = 242,076.44