Finding the Fourth Proportional to 72,647.72, 108,963.42 and 20,064.68

Step by Step Solution

1. Step 1: Write the proportion equation
   72,647.72 : 108,963.42 = 20,064.68 : x
2. Step 2: Convert to fraction form
   72,647.72/108,963.42 = 20,064.68/x
3. Step 3: Cross multiply
   72,647.72x = 108,963.42 × 20,064.68
4. Step 4: Simplify right side
   72,647.72x = 2,186,316,154.01
5. Step 5: Solve for x
   x = 2,186,316,154.01/72,647.72
6. Step 6: Final answer
   x = 30,094.77