Finding the Fourth Proportional to 11,118.03, 16,678.86 and 5,271.45

Step by Step Solution

1. Step 1: Write the proportion equation
   11,118.03 : 16,678.86 = 5,271.45 : x
2. Step 2: Convert to fraction form
   11,118.03/16,678.86 = 5,271.45/x
3. Step 3: Cross multiply
   11,118.03x = 16,678.86 × 5,271.45
4. Step 4: Simplify right side
   11,118.03x = 87,921,776.55
5. Step 5: Solve for x
   x = 87,921,776.55/11,118.03
6. Step 6: Final answer
   x = 7,908.04