Finding the Fourth Proportional to 39,967.22, 55,154.10 and 22,061.76

Step by Step Solution

1. Step 1: Write the proportion equation
   39,967.22 : 55,154.10 = 22,061.76 : x
2. Step 2: Convert to fraction form
   39,967.22/55,154.10 = 22,061.76/x
3. Step 3: Cross multiply
   39,967.22x = 55,154.10 × 22,061.76
4. Step 4: Simplify right side
   39,967.22x = 1,216,796,406.91
5. Step 5: Solve for x
   x = 1,216,796,406.91/39,967.22
6. Step 6: Final answer
   x = 30,444.86