Finding the Fourth Proportional to 9,978.70, 14,968.51 and 3,404.95

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978.70 : 14,968.51 = 3,404.95 : x
2. Step 2: Convert to fraction form
   9,978.70/14,968.51 = 3,404.95/x
3. Step 3: Cross multiply
   9,978.70x = 14,968.51 × 3,404.95
4. Step 4: Simplify right side
   9,978.70x = 50,967,028.12
5. Step 5: Solve for x
   x = 50,967,028.12/9,978.70
6. Step 6: Final answer
   x = 5,107.58