Finding the Fourth Proportional to 208,734.72, 288,054.02 and 113,241.39

Step by Step Solution

1. Step 1: Write the proportion equation
   208,734.72 : 288,054.02 = 113,241.39 : x
2. Step 2: Convert to fraction form
   208,734.72/288,054.02 = 113,241.39/x
3. Step 3: Cross multiply
   208,734.72x = 288,054.02 × 113,241.39
4. Step 4: Simplify right side
   208,734.72x = 32,619,637,619.89
5. Step 5: Solve for x
   x = 32,619,637,619.89/208,734.72
6. Step 6: Final answer
   x = 156,273.18