Finding the Fourth Proportional to 72,443.44, 108,665.22 and 19,853.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,443.44 : 108,665.22 = 19,853.32 : x
2. Step 2: Convert to fraction form
   72,443.44/108,665.22 = 19,853.32/x
3. Step 3: Cross multiply
   72,443.44x = 108,665.22 × 19,853.32
4. Step 4: Simplify right side
   72,443.44x = 2,157,365,385.53
5. Step 5: Solve for x
   x = 2,157,365,385.53/72,443.44
6. Step 6: Final answer
   x = 29,780.00