Finding the Fourth Proportional to 11,643.52, 16,063.89 and 7,816.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,643.52 : 16,063.89 = 7,816.09 : x
2. Step 2: Convert to fraction form
   11,643.52/16,063.89 = 7,816.09/x
3. Step 3: Cross multiply
   11,643.52x = 16,063.89 × 7,816.09
4. Step 4: Simplify right side
   11,643.52x = 125,556,809.99
5. Step 5: Solve for x
   x = 125,556,809.99/11,643.52
6. Step 6: Final answer
   x = 10,783.41