Finding the Fourth Proportional to 72,956.58, 109,419 and 19,647.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,956.58 : 109,419 = 19,647.24 : x
2. Step 2: Convert to fraction form
   72,956.58/109,419 = 19,647.24/x
3. Step 3: Cross multiply
   72,956.58x = 109,419 × 19,647.24
4. Step 4: Simplify right side
   72,956.58x = 2,149,781,353.56
5. Step 5: Solve for x
   x = 2,149,781,353.56/72,956.58
6. Step 6: Final answer
   x = 29,466.59