Finding the Fourth Proportional to 72,007.54, 107,998.32 and 19,404.74

Step by Step Solution

1. Step 1: Write the proportion equation
   72,007.54 : 107,998.32 = 19,404.74 : x
2. Step 2: Convert to fraction form
   72,007.54/107,998.32 = 19,404.74/x
3. Step 3: Cross multiply
   72,007.54x = 107,998.32 × 19,404.74
4. Step 4: Simplify right side
   72,007.54x = 2,095,679,320.04
5. Step 5: Solve for x
   x = 2,095,679,320.04/72,007.54
6. Step 6: Final answer
   x = 29,103.61