Finding the Fourth Proportional to 9,978.64, 14,967.42 and 3,053.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978.64 : 14,967.42 = 3,053.14 : x
2. Step 2: Convert to fraction form
   9,978.64/14,967.42 = 3,053.14/x
3. Step 3: Cross multiply
   9,978.64x = 14,967.42 × 3,053.14
4. Step 4: Simplify right side
   9,978.64x = 45,697,628.70
5. Step 5: Solve for x
   x = 45,697,628.70/9,978.64
6. Step 6: Final answer
   x = 4,579.54