Finding the Fourth Proportional to 81,436.32, 122,212.22 and 37,068.80

Step by Step Solution

1. Step 1: Write the proportion equation
   81,436.32 : 122,212.22 = 37,068.80 : x
2. Step 2: Convert to fraction form
   81,436.32/122,212.22 = 37,068.80/x
3. Step 3: Cross multiply
   81,436.32x = 122,212.22 × 37,068.80
4. Step 4: Simplify right side
   81,436.32x = 4,530,259,544.33
5. Step 5: Solve for x
   x = 4,530,259,544.33/81,436.32
6. Step 6: Final answer
   x = 55,629.47