Finding the Fourth Proportional to 238,766.72, 329,544.86 and 136,860.48

Step by Step Solution

1. Step 1: Write the proportion equation
   238,766.72 : 329,544.86 = 136,860.48 : x
2. Step 2: Convert to fraction form
   238,766.72/329,544.86 = 136,860.48/x
3. Step 3: Cross multiply
   238,766.72x = 329,544.86 × 136,860.48
4. Step 4: Simplify right side
   238,766.72x = 45,101,667,036.83
5. Step 5: Solve for x
   x = 45,101,667,036.83/238,766.72
6. Step 6: Final answer
   x = 188,894.28