Finding the Fourth Proportional to 11,298.08, 16,945.67 and 2,978.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,298.08 : 16,945.67 = 2,978.75 : x
2. Step 2: Convert to fraction form
   11,298.08/16,945.67 = 2,978.75/x
3. Step 3: Cross multiply
   11,298.08x = 16,945.67 × 2,978.75
4. Step 4: Simplify right side
   11,298.08x = 50,476,814.89
5. Step 5: Solve for x
   x = 50,476,814.89/11,298.08
6. Step 6: Final answer
   x = 4,467.74