Finding the Fourth Proportional to 20,726.22, 31,080.18 and 5,931.76

Step by Step Solution

1. Step 1: Write the proportion equation
   20,726.22 : 31,080.18 = 5,931.76 : x
2. Step 2: Convert to fraction form
   20,726.22/31,080.18 = 5,931.76/x
3. Step 3: Cross multiply
   20,726.22x = 31,080.18 × 5,931.76
4. Step 4: Simplify right side
   20,726.22x = 184,360,168.52
5. Step 5: Solve for x
   x = 184,360,168.52/20,726.22
6. Step 6: Final answer
   x = 8,895.02