Finding the Fourth Proportional to 39,981.72, 55,174.86 and 22,076.76

Step by Step Solution

1. Step 1: Write the proportion equation
   39,981.72 : 55,174.86 = 22,076.76 : x
2. Step 2: Convert to fraction form
   39,981.72/55,174.86 = 22,076.76/x
3. Step 3: Cross multiply
   39,981.72x = 55,174.86 × 22,076.76
4. Step 4: Simplify right side
   39,981.72x = 1,218,082,142.25
5. Step 5: Solve for x
   x = 1,218,082,142.25/39,981.72
6. Step 6: Final answer
   x = 30,465.98