Finding the Fourth Proportional to 72,822.03, 109,238.94 and 20,231.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,822.03 : 109,238.94 = 20,231.52 : x
2. Step 2: Convert to fraction form
   72,822.03/109,238.94 = 20,231.52/x
3. Step 3: Cross multiply
   72,822.03x = 109,238.94 × 20,231.52
4. Step 4: Simplify right side
   72,822.03x = 2,210,069,799.39
5. Step 5: Solve for x
   x = 2,210,069,799.39/72,822.03
6. Step 6: Final answer
   x = 30,348.92