Finding the Fourth Proportional to 12,882.02, 17,776.85 and 7,577.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,882.02 : 17,776.85 = 7,577.16 : x
2. Step 2: Convert to fraction form
   12,882.02/17,776.85 = 7,577.16/x
3. Step 3: Cross multiply
   12,882.02x = 17,776.85 × 7,577.16
4. Step 4: Simplify right side
   12,882.02x = 134,697,998.86
5. Step 5: Solve for x
   x = 134,697,998.86/12,882.02
6. Step 6: Final answer
   x = 10,456.28