Finding the Fourth Proportional to 72,522.76, 108,785.34 and 19,931.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,522.76 : 108,785.34 = 19,931.92 : x
2. Step 2: Convert to fraction form
   72,522.76/108,785.34 = 19,931.92/x
3. Step 3: Cross multiply
   72,522.76x = 108,785.34 × 19,931.92
4. Step 4: Simplify right side
   72,522.76x = 2,168,300,694.05
5. Step 5: Solve for x
   x = 2,168,300,694.05/72,522.76
6. Step 6: Final answer
   x = 29,898.21