Finding the Fourth Proportional to 11,881.29, 16,395.06 and 7,100.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,881.29 : 16,395.06 = 7,100.28 : x
2. Step 2: Convert to fraction form
   11,881.29/16,395.06 = 7,100.28/x
3. Step 3: Cross multiply
   11,881.29x = 16,395.06 × 7,100.28
4. Step 4: Simplify right side
   11,881.29x = 116,409,516.62
5. Step 5: Solve for x
   x = 116,409,516.62/11,881.29
6. Step 6: Final answer
   x = 9,797.72