Finding the Fourth Proportional to 12,116.46, 16,721.60 and 7,401.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,116.46 : 16,721.60 = 7,401.63 : x
2. Step 2: Convert to fraction form
   12,116.46/16,721.60 = 7,401.63/x
3. Step 3: Cross multiply
   12,116.46x = 16,721.60 × 7,401.63
4. Step 4: Simplify right side
   12,116.46x = 123,767,059.20
5. Step 5: Solve for x
   x = 123,767,059.20/12,116.46
6. Step 6: Final answer
   x = 10,214.79