Finding the Fourth Proportional to 72,653.15, 108,979.56 and 20,062.49

Step by Step Solution

1. Step 1: Write the proportion equation
   72,653.15 : 108,979.56 = 20,062.49 : x
2. Step 2: Convert to fraction form
   72,653.15/108,979.56 = 20,062.49/x
3. Step 3: Cross multiply
   72,653.15x = 108,979.56 × 20,062.49
4. Step 4: Simplify right side
   72,653.15x = 2,186,400,787.81
5. Step 5: Solve for x
   x = 2,186,400,787.81/72,653.15
6. Step 6: Final answer
   x = 30,093.68