Finding the Fourth Proportional to 172,665.08, 238,412.96 and 135,046.52

Step by Step Solution

1. Step 1: Write the proportion equation
   172,665.08 : 238,412.96 = 135,046.52 : x
2. Step 2: Convert to fraction form
   172,665.08/238,412.96 = 135,046.52/x
3. Step 3: Cross multiply
   172,665.08x = 238,412.96 × 135,046.52
4. Step 4: Simplify right side
   172,665.08x = 32,196,840,570.90
5. Step 5: Solve for x
   x = 32,196,840,570.90/172,665.08
6. Step 6: Final answer
   x = 186,469.90