Finding the Fourth Proportional to 72,270.72, 108,395.15 and 19,684.35

Step by Step Solution

1. Step 1: Write the proportion equation
   72,270.72 : 108,395.15 = 19,684.35 : x
2. Step 2: Convert to fraction form
   72,270.72/108,395.15 = 19,684.35/x
3. Step 3: Cross multiply
   72,270.72x = 108,395.15 × 19,684.35
4. Step 4: Simplify right side
   72,270.72x = 2,133,687,972.48
5. Step 5: Solve for x
   x = 2,133,687,972.48/72,270.72
6. Step 6: Final answer
   x = 29,523.55