Finding the Fourth Proportional to 72,022.96, 108,038.49 and 19,436.55

Step by Step Solution

1. Step 1: Write the proportion equation
   72,022.96 : 108,038.49 = 19,436.55 : x
2. Step 2: Convert to fraction form
   72,022.96/108,038.49 = 19,436.55/x
3. Step 3: Cross multiply
   72,022.96x = 108,038.49 × 19,436.55
4. Step 4: Simplify right side
   72,022.96x = 2,099,895,512.81
5. Step 5: Solve for x
   x = 2,099,895,512.81/72,022.96
6. Step 6: Final answer
   x = 29,155.92