Finding the Fourth Proportional to 81,384.22, 122,111.33 and 43,936.86

Step by Step Solution

1. Step 1: Write the proportion equation
   81,384.22 : 122,111.33 = 43,936.86 : x
2. Step 2: Convert to fraction form
   81,384.22/122,111.33 = 43,936.86/x
3. Step 3: Cross multiply
   81,384.22x = 122,111.33 × 43,936.86
4. Step 4: Simplify right side
   81,384.22x = 5,365,188,051.05
5. Step 5: Solve for x
   x = 5,365,188,051.05/81,384.22
6. Step 6: Final answer
   x = 65,924.18