Finding the Fourth Proportional to 165,196.96, 247,758.07 and 76,401.72

Step by Step Solution

1. Step 1: Write the proportion equation
   165,196.96 : 247,758.07 = 76,401.72 : x
2. Step 2: Convert to fraction form
   165,196.96/247,758.07 = 76,401.72/x
3. Step 3: Cross multiply
   165,196.96x = 247,758.07 × 76,401.72
4. Step 4: Simplify right side
   165,196.96x = 18,929,142,691.88
5. Step 5: Solve for x
   x = 18,929,142,691.88/165,196.96
6. Step 6: Final answer
   x = 114,585.30