Finding the Fourth Proportional to 209,050.56, 288,490.32 and 113,556.48

Step by Step Solution

1. Step 1: Write the proportion equation
   209,050.56 : 288,490.32 = 113,556.48 : x
2. Step 2: Convert to fraction form
   209,050.56/288,490.32 = 113,556.48/x
3. Step 3: Cross multiply
   209,050.56x = 288,490.32 × 113,556.48
4. Step 4: Simplify right side
   209,050.56x = 32,759,945,253.27
5. Step 5: Solve for x
   x = 32,759,945,253.27/209,050.56
6. Step 6: Final answer
   x = 156,708.24