Finding the Fourth Proportional to 81,007.47, 121,510.83 and 21,849.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,007.47 : 121,510.83 = 21,849.12 : x
2. Step 2: Convert to fraction form
   81,007.47/121,510.83 = 21,849.12/x
3. Step 3: Cross multiply
   81,007.47x = 121,510.83 × 21,849.12
4. Step 4: Simplify right side
   81,007.47x = 2,654,904,705.97
5. Step 5: Solve for x
   x = 2,654,904,705.97/81,007.47
6. Step 6: Final answer
   x = 32,773.58