Finding the Fourth Proportional to 67,323.52, 100,981.62 and 20,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67,323.52 : 100,981.62 = 20,572.72 : x
2. Step 2: Convert to fraction form
   67,323.52/100,981.62 = 20,572.72/x
3. Step 3: Cross multiply
   67,323.52x = 100,981.62 × 20,572.72
4. Step 4: Simplify right side
   67,323.52x = 2,077,466,593.41
5. Step 5: Solve for x
   x = 2,077,466,593.41/67,323.52
6. Step 6: Final answer
   x = 30,857.96