Finding the Fourth Proportional to 8,401.82, 12,606.16 and 5,931.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,401.82 : 12,606.16 = 5,931.32 : x
2. Step 2: Convert to fraction form
   8,401.82/12,606.16 = 5,931.32/x
3. Step 3: Cross multiply
   8,401.82x = 12,606.16 × 5,931.32
4. Step 4: Simplify right side
   8,401.82x = 74,771,168.93
5. Step 5: Solve for x
   x = 74,771,168.93/8,401.82
6. Step 6: Final answer
   x = 8,899.40