Finding the Fourth Proportional to 243,196.39, 335,616.69 and 152,556.18

Step by Step Solution

1. Step 1: Write the proportion equation
   243,196.39 : 335,616.69 = 152,556.18 : x
2. Step 2: Convert to fraction form
   243,196.39/335,616.69 = 152,556.18/x
3. Step 3: Cross multiply
   243,196.39x = 335,616.69 × 152,556.18
4. Step 4: Simplify right side
   243,196.39x = 51,200,400,170.64
5. Step 5: Solve for x
   x = 51,200,400,170.64/243,196.39
6. Step 6: Final answer
   x = 210,531.09