Finding the Fourth Proportional to 172,498.63, 238,157.49 and 118,141.96

Step by Step Solution

1. Step 1: Write the proportion equation
   172,498.63 : 238,157.49 = 118,141.96 : x
2. Step 2: Convert to fraction form
   172,498.63/238,157.49 = 118,141.96/x
3. Step 3: Cross multiply
   172,498.63x = 238,157.49 × 118,141.96
4. Step 4: Simplify right side
   172,498.63x = 28,136,392,657.28
5. Step 5: Solve for x
   x = 28,136,392,657.28/172,498.63
6. Step 6: Final answer
   x = 163,110.82