Finding the Fourth Proportional to 11,884.52, 16,400.87 and 7,109.39

Step by Step Solution

1. Step 1: Write the proportion equation
   11,884.52 : 16,400.87 = 7,109.39 : x
2. Step 2: Convert to fraction form
   11,884.52/16,400.87 = 7,109.39/x
3. Step 3: Cross multiply
   11,884.52x = 16,400.87 × 7,109.39
4. Step 4: Simplify right side
   11,884.52x = 116,600,116.94
5. Step 5: Solve for x
   x = 116,600,116.94/11,884.52
6. Step 6: Final answer
   x = 9,811.10