Finding the Fourth Proportional to 72,824.53, 109,242.69 and 20,234.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,824.53 : 109,242.69 = 20,234.02 : x
2. Step 2: Convert to fraction form
   72,824.53/109,242.69 = 20,234.02/x
3. Step 3: Cross multiply
   72,824.53x = 109,242.69 × 20,234.02
4. Step 4: Simplify right side
   72,824.53x = 2,210,418,774.31
5. Step 5: Solve for x
   x = 2,210,418,774.31/72,824.53
6. Step 6: Final answer
   x = 30,352.67