Finding the Fourth Proportional to 72,617.02, 108,922.56 and 20,025.07

Step by Step Solution

1. Step 1: Write the proportion equation
   72,617.02 : 108,922.56 = 20,025.07 : x
2. Step 2: Convert to fraction form
   72,617.02/108,922.56 = 20,025.07/x
3. Step 3: Cross multiply
   72,617.02x = 108,922.56 × 20,025.07
4. Step 4: Simplify right side
   72,617.02x = 2,181,181,888.58
5. Step 5: Solve for x
   x = 2,181,181,888.58/72,617.02
6. Step 6: Final answer
   x = 30,036.79