Finding the Fourth Proportional to 11,812.59, 17,684.33 and 7,164.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,812.59 : 17,684.33 = 7,164.27 : x
2. Step 2: Convert to fraction form
   11,812.59/17,684.33 = 7,164.27/x
3. Step 3: Cross multiply
   11,812.59x = 17,684.33 × 7,164.27
4. Step 4: Simplify right side
   11,812.59x = 126,695,279.07
5. Step 5: Solve for x
   x = 126,695,279.07/11,812.59
6. Step 6: Final answer
   x = 10,725.44