Finding the Fourth Proportional to 8,073.72, 12,099.96 and 7,547.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.72 : 12,099.96 = 7,547.58 : x
2. Step 2: Convert to fraction form
   8,073.72/12,099.96 = 7,547.58/x
3. Step 3: Cross multiply
   8,073.72x = 12,099.96 × 7,547.58
4. Step 4: Simplify right side
   8,073.72x = 91,325,416.10
5. Step 5: Solve for x
   x = 91,325,416.10/8,073.72
6. Step 6: Final answer
   x = 11,311.44