Finding the Fourth Proportional to 72,538.96, 108,795.90 and 19,231.29

Step by Step Solution

1. Step 1: Write the proportion equation
   72,538.96 : 108,795.90 = 19,231.29 : x
2. Step 2: Convert to fraction form
   72,538.96/108,795.90 = 19,231.29/x
3. Step 3: Cross multiply
   72,538.96x = 108,795.90 × 19,231.29
4. Step 4: Simplify right side
   72,538.96x = 2,092,285,503.71
5. Step 5: Solve for x
   x = 2,092,285,503.71/72,538.96
6. Step 6: Final answer
   x = 28,843.61