Finding the Fourth Proportional to 11,892.82, 16,412.20 and 7,176.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892.82 : 16,412.20 = 7,176.18 : x
2. Step 2: Convert to fraction form
   11,892.82/16,412.20 = 7,176.18/x
3. Step 3: Cross multiply
   11,892.82x = 16,412.20 × 7,176.18
4. Step 4: Simplify right side
   11,892.82x = 117,776,901.40
5. Step 5: Solve for x
   x = 117,776,901.40/11,892.82
6. Step 6: Final answer
   x = 9,903.19