Finding the Fourth Proportional to 11,978.44, 16,530.06 and 6,673.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,978.44 : 16,530.06 = 6,673.72 : x
2. Step 2: Convert to fraction form
   11,978.44/16,530.06 = 6,673.72/x
3. Step 3: Cross multiply
   11,978.44x = 16,530.06 × 6,673.72
4. Step 4: Simplify right side
   11,978.44x = 110,316,992.02
5. Step 5: Solve for x
   x = 110,316,992.02/11,978.44
6. Step 6: Final answer
   x = 9,209.63