Finding the Fourth Proportional to 12,373.56, 17,078.70 and 8,401.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,373.56 : 17,078.70 = 8,401.32 : x
2. Step 2: Convert to fraction form
   12,373.56/17,078.70 = 8,401.32/x
3. Step 3: Cross multiply
   12,373.56x = 17,078.70 × 8,401.32
4. Step 4: Simplify right side
   12,373.56x = 143,483,623.88
5. Step 5: Solve for x
   x = 143,483,623.88/12,373.56
6. Step 6: Final answer
   x = 11,595.99