Finding the Fourth Proportional to 11,178.02, 16,764.24 and 3,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,178.02 : 16,764.24 = 3,386.72 : x
2. Step 2: Convert to fraction form
   11,178.02/16,764.24 = 3,386.72/x
3. Step 3: Cross multiply
   11,178.02x = 16,764.24 × 3,386.72
4. Step 4: Simplify right side
   11,178.02x = 56,775,786.89
5. Step 5: Solve for x
   x = 56,775,786.89/11,178.02
6. Step 6: Final answer
   x = 5,079.23