Finding the Fourth Proportional to 338,540.50, 467,185.89 and 187,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   338,540.50 : 467,185.89 = 187,637.50 : x
2. Step 2: Convert to fraction form
   338,540.50/467,185.89 = 187,637.50/x
3. Step 3: Cross multiply
   338,540.50x = 467,185.89 × 187,637.50
4. Step 4: Simplify right side
   338,540.50x = 87,661,592,434.88
5. Step 5: Solve for x
   x = 87,661,592,434.88/338,540.50
6. Step 6: Final answer
   x = 258,939.75