Finding the Fourth Proportional to 72,360.69, 108,539.82 and 19,769.97

Step by Step Solution

1. Step 1: Write the proportion equation
   72,360.69 : 108,539.82 = 19,769.97 : x
2. Step 2: Convert to fraction form
   72,360.69/108,539.82 = 19,769.97/x
3. Step 3: Cross multiply
   72,360.69x = 108,539.82 × 19,769.97
4. Step 4: Simplify right side
   72,360.69x = 2,145,828,985.21
5. Step 5: Solve for x
   x = 2,145,828,985.21/72,360.69
6. Step 6: Final answer
   x = 29,654.62