Finding the Fourth Proportional to 109,819.24, 164,863.52 and 72,410.60

Step by Step Solution

1. Step 1: Write the proportion equation
   109,819.24 : 164,863.52 = 72,410.60 : x
2. Step 2: Convert to fraction form
   109,819.24/164,863.52 = 72,410.60/x
3. Step 3: Cross multiply
   109,819.24x = 164,863.52 × 72,410.60
4. Step 4: Simplify right side
   109,819.24x = 11,937,866,401.31
5. Step 5: Solve for x
   x = 11,937,866,401.31/109,819.24
6. Step 6: Final answer
   x = 108,704.69