Finding the Fourth Proportional to 238,986.82, 329,805.96 and 137,028.88

Step by Step Solution

1. Step 1: Write the proportion equation
   238,986.82 : 329,805.96 = 137,028.88 : x
2. Step 2: Convert to fraction form
   238,986.82/329,805.96 = 137,028.88/x
3. Step 3: Cross multiply
   238,986.82x = 329,805.96 × 137,028.88
4. Step 4: Simplify right side
   238,986.82x = 45,192,939,667.10
5. Step 5: Solve for x
   x = 45,192,939,667.10/238,986.82
6. Step 6: Final answer
   x = 189,102.23