Finding the Fourth Proportional to 172,789.89, 238,428.81 and 96,290.25

Step by Step Solution

1. Step 1: Write the proportion equation
   172,789.89 : 238,428.81 = 96,290.25 : x
2. Step 2: Convert to fraction form
   172,789.89/238,428.81 = 96,290.25/x
3. Step 3: Cross multiply
   172,789.89x = 238,428.81 × 96,290.25
4. Step 4: Simplify right side
   172,789.89x = 22,958,369,722.10
5. Step 5: Solve for x
   x = 22,958,369,722.10/172,789.89
6. Step 6: Final answer
   x = 132,868.71