Finding the Fourth Proportional to 72,335.84, 108,503.82 and 19,745.78

Step by Step Solution

1. Step 1: Write the proportion equation
   72,335.84 : 108,503.82 = 19,745.78 : x
2. Step 2: Convert to fraction form
   72,335.84/108,503.82 = 19,745.78/x
3. Step 3: Cross multiply
   72,335.84x = 108,503.82 × 19,745.78
4. Step 4: Simplify right side
   72,335.84x = 2,142,492,016.36
5. Step 5: Solve for x
   x = 2,142,492,016.36/72,335.84
6. Step 6: Final answer
   x = 29,618.68