Finding the Fourth Proportional to 72,826.53, 109,245.69 and 20,236.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,826.53 : 109,245.69 = 20,236.02 : x
2. Step 2: Convert to fraction form
   72,826.53/109,245.69 = 20,236.02/x
3. Step 3: Cross multiply
   72,826.53x = 109,245.69 × 20,236.02
4. Step 4: Simplify right side
   72,826.53x = 2,210,697,967.75
5. Step 5: Solve for x
   x = 2,210,697,967.75/72,826.53
6. Step 6: Final answer
   x = 30,355.67