Finding the Fourth Proportional to 8,910.51, 12,297.89 and 5,082.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,910.51 : 12,297.89 = 5,082.16 : x
2. Step 2: Convert to fraction form
   8,910.51/12,297.89 = 5,082.16/x
3. Step 3: Cross multiply
   8,910.51x = 12,297.89 × 5,082.16
4. Step 4: Simplify right side
   8,910.51x = 62,499,776.34
5. Step 5: Solve for x
   x = 62,499,776.34/8,910.51
6. Step 6: Final answer
   x = 7,014.16