Finding the Fourth Proportional to 81,596.33, 122,406.84 and 28,993.31

Step by Step Solution

1. Step 1: Write the proportion equation
   81,596.33 : 122,406.84 = 28,993.31 : x
2. Step 2: Convert to fraction form
   81,596.33/122,406.84 = 28,993.31/x
3. Step 3: Cross multiply
   81,596.33x = 122,406.84 × 28,993.31
4. Step 4: Simplify right side
   81,596.33x = 3,548,978,846.21
5. Step 5: Solve for x
   x = 3,548,978,846.21/81,596.33
6. Step 6: Final answer
   x = 43,494.35