Finding the Fourth Proportional to 11,298.79, 16,946.74 and 2,978.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,298.79 : 16,946.74 = 2,978.88 : x
2. Step 2: Convert to fraction form
   11,298.79/16,946.74 = 2,978.88/x
3. Step 3: Cross multiply
   11,298.79x = 16,946.74 × 2,978.88
4. Step 4: Simplify right side
   11,298.79x = 50,482,304.85
5. Step 5: Solve for x
   x = 50,482,304.85/11,298.79
6. Step 6: Final answer
   x = 4,467.94