Finding the Fourth Proportional to 72,013.84, 108,020.78 and 19,423.34

Step by Step Solution

1. Step 1: Write the proportion equation
   72,013.84 : 108,020.78 = 19,423.34 : x
2. Step 2: Convert to fraction form
   72,013.84/108,020.78 = 19,423.34/x
3. Step 3: Cross multiply
   72,013.84x = 108,020.78 × 19,423.34
4. Step 4: Simplify right side
   72,013.84x = 2,098,124,337.01
5. Step 5: Solve for x
   x = 2,098,124,337.01/72,013.84
6. Step 6: Final answer
   x = 29,135.02