Finding the Fourth Proportional to 172,387.27, 237,759.54 and 117,971.59

Step by Step Solution

1. Step 1: Write the proportion equation
   172,387.27 : 237,759.54 = 117,971.59 : x
2. Step 2: Convert to fraction form
   172,387.27/237,759.54 = 117,971.59/x
3. Step 3: Cross multiply
   172,387.27x = 237,759.54 × 117,971.59
4. Step 4: Simplify right side
   172,387.27x = 28,048,870,971.47
5. Step 5: Solve for x
   x = 28,048,870,971.47/172,387.27
6. Step 6: Final answer
   x = 162,708.48