Finding the Fourth Proportional to 39,967.23, 55,155.17 and 22,061.85

Step by Step Solution

1. Step 1: Write the proportion equation
   39,967.23 : 55,155.17 = 22,061.85 : x
2. Step 2: Convert to fraction form
   39,967.23/55,155.17 = 22,061.85/x
3. Step 3: Cross multiply
   39,967.23x = 55,155.17 × 22,061.85
4. Step 4: Simplify right side
   39,967.23x = 1,216,825,168.27
5. Step 5: Solve for x
   x = 1,216,825,168.27/39,967.23
6. Step 6: Final answer
   x = 30,445.57