Finding the Fourth Proportional to 81,333.05, 121,995.98 and 22,168.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,333.05 : 121,995.98 = 22,168.72 : x
2. Step 2: Convert to fraction form
   81,333.05/121,995.98 = 22,168.72/x
3. Step 3: Cross multiply
   81,333.05x = 121,995.98 × 22,168.72
4. Step 4: Simplify right side
   81,333.05x = 2,704,494,111.77
5. Step 5: Solve for x
   x = 2,704,494,111.77/81,333.05
6. Step 6: Final answer
   x = 33,252.09