Finding the Fourth Proportional to 39,965.14, 55,151.90 and 22,060.15

Step by Step Solution

1. Step 1: Write the proportion equation
   39,965.14 : 55,151.90 = 22,060.15 : x
2. Step 2: Convert to fraction form
   39,965.14/55,151.90 = 22,060.15/x
3. Step 3: Cross multiply
   39,965.14x = 55,151.90 × 22,060.15
4. Step 4: Simplify right side
   39,965.14x = 1,216,658,800.72
5. Step 5: Solve for x
   x = 1,216,658,800.72/39,965.14
6. Step 6: Final answer
   x = 30,443.00