Finding the Fourth Proportional to 172,496.86, 238,016.00 and 158,544.74

Step by Step Solution

1. Step 1: Write the proportion equation
   172,496.86 : 238,016.00 = 158,544.74 : x
2. Step 2: Convert to fraction form
   172,496.86/238,016.00 = 158,544.74/x
3. Step 3: Cross multiply
   172,496.86x = 238,016.00 × 158,544.74
4. Step 4: Simplify right side
   172,496.86x = 37,736,185,827.24
5. Step 5: Solve for x
   x = 37,736,185,827.24/172,496.86
6. Step 6: Final answer
   x = 218,764.48