Finding the Fourth Proportional to 8,379.04, 11,554.72 and 7,118.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,379.04 : 11,554.72 = 7,118.72 : x
2. Step 2: Convert to fraction form
   8,379.04/11,554.72 = 7,118.72/x
3. Step 3: Cross multiply
   8,379.04x = 11,554.72 × 7,118.72
4. Step 4: Simplify right side
   8,379.04x = 82,254,816.36
5. Step 5: Solve for x
   x = 82,254,816.36/8,379.04
6. Step 6: Final answer
   x = 9,816.74