Finding the Fourth Proportional to 39,981.72, 55,175.22 and 22,076.70

Step by Step Solution

1. Step 1: Write the proportion equation
   39,981.72 : 55,175.22 = 22,076.70 : x
2. Step 2: Convert to fraction form
   39,981.72/55,175.22 = 22,076.70/x
3. Step 3: Cross multiply
   39,981.72x = 55,175.22 × 22,076.70
4. Step 4: Simplify right side
   39,981.72x = 1,218,086,779.37
5. Step 5: Solve for x
   x = 1,218,086,779.37/39,981.72
6. Step 6: Final answer
   x = 30,466.09