Finding the Fourth Proportional to 209,174.33, 288,662.81 and 113,681.03

Step by Step Solution

1. Step 1: Write the proportion equation
   209,174.33 : 288,662.81 = 113,681.03 : x
2. Step 2: Convert to fraction form
   209,174.33/288,662.81 = 113,681.03/x
3. Step 3: Cross multiply
   209,174.33x = 288,662.81 × 113,681.03
4. Step 4: Simplify right side
   209,174.33x = 32,815,483,551.78
5. Step 5: Solve for x
   x = 32,815,483,551.78/209,174.33
6. Step 6: Final answer
   x = 156,881.03