Finding the Fourth Proportional to 9,981.30, 14,970.72 and 3,408.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.30 : 14,970.72 = 3,408.14 : x
2. Step 2: Convert to fraction form
   9,981.30/14,970.72 = 3,408.14/x
3. Step 3: Cross multiply
   9,981.30x = 14,970.72 × 3,408.14
4. Step 4: Simplify right side
   9,981.30x = 51,022,309.66
5. Step 5: Solve for x
   x = 51,022,309.66/9,981.30
6. Step 6: Final answer
   x = 5,111.79