Finding the Fourth Proportional to 39,969.71, 55,158.37 and 22,064.86

Step by Step Solution

1. Step 1: Write the proportion equation
   39,969.71 : 55,158.37 = 22,064.86 : x
2. Step 2: Convert to fraction form
   39,969.71/55,158.37 = 22,064.86/x
3. Step 3: Cross multiply
   39,969.71x = 55,158.37 × 22,064.86
4. Step 4: Simplify right side
   39,969.71x = 1,217,061,325.76
5. Step 5: Solve for x
   x = 1,217,061,325.76/39,969.71
6. Step 6: Final answer
   x = 30,449.59