Finding the Fourth Proportional to 72,653.36, 108,979.88 and 20,062.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,653.36 : 108,979.88 = 20,062.69 : x
2. Step 2: Convert to fraction form
   72,653.36/108,979.88 = 20,062.69/x
3. Step 3: Cross multiply
   72,653.36x = 108,979.88 × 20,062.69
4. Step 4: Simplify right side
   72,653.36x = 2,186,429,288.77
5. Step 5: Solve for x
   x = 2,186,429,288.77/72,653.36
6. Step 6: Final answer
   x = 30,093.99