Finding the Fourth Proportional to 81,826.05, 122,799.92 and 60,815.01

Step by Step Solution

1. Step 1: Write the proportion equation
   81,826.05 : 122,799.92 = 60,815.01 : x
2. Step 2: Convert to fraction form
   81,826.05/122,799.92 = 60,815.01/x
3. Step 3: Cross multiply
   81,826.05x = 122,799.92 × 60,815.01
4. Step 4: Simplify right side
   81,826.05x = 7,468,078,058.72
5. Step 5: Solve for x
   x = 7,468,078,058.72/81,826.05
6. Step 6: Final answer
   x = 91,267.73