Finding the Fourth Proportional to 72,936.02, 109,410.15 and 20,346.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72,936.02 : 109,410.15 = 20,346.14 : x
2. Step 2: Convert to fraction form
   72,936.02/109,410.15 = 20,346.14/x
3. Step 3: Cross multiply
   72,936.02x = 109,410.15 × 20,346.14
4. Step 4: Simplify right side
   72,936.02x = 2,226,074,229.32
5. Step 5: Solve for x
   x = 2,226,074,229.32/72,936.02
6. Step 6: Final answer
   x = 30,520.92