Finding the Fourth Proportional to 9,977.18, 14,960.78 and 3,401.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,977.18 : 14,960.78 = 3,401.06 : x
2. Step 2: Convert to fraction form
   9,977.18/14,960.78 = 3,401.06/x
3. Step 3: Cross multiply
   9,977.18x = 14,960.78 × 3,401.06
4. Step 4: Simplify right side
   9,977.18x = 50,882,510.43
5. Step 5: Solve for x
   x = 50,882,510.43/9,977.18
6. Step 6: Final answer
   x = 5,099.89