Finding the Fourth Proportional to 72,636.72, 108,946.92 and 20,053.68

Step by Step Solution

1. Step 1: Write the proportion equation
   72,636.72 : 108,946.92 = 20,053.68 : x
2. Step 2: Convert to fraction form
   72,636.72/108,946.92 = 20,053.68/x
3. Step 3: Cross multiply
   72,636.72x = 108,946.92 × 20,053.68
4. Step 4: Simplify right side
   72,636.72x = 2,184,786,670.67
5. Step 5: Solve for x
   x = 2,184,786,670.67/72,636.72
6. Step 6: Final answer
   x = 30,078.27