Finding the Fourth Proportional to 165,288.72, 247,949.48 and 52,940.72

Step by Step Solution

1. Step 1: Write the proportion equation
   165,288.72 : 247,949.48 = 52,940.72 : x
2. Step 2: Convert to fraction form
   165,288.72/247,949.48 = 52,940.72/x
3. Step 3: Cross multiply
   165,288.72x = 247,949.48 × 52,940.72
4. Step 4: Simplify right side
   165,288.72x = 13,126,623,994.83
5. Step 5: Solve for x
   x = 13,126,623,994.83/165,288.72
6. Step 6: Final answer
   x = 79,416.33