Finding the Fourth Proportional to 11,690.72, 17,516.24 and 7,064

Step by Step Solution

1. Step 1: Write the proportion equation
   11,690.72 : 17,516.24 = 7,064 : x
2. Step 2: Convert to fraction form
   11,690.72/17,516.24 = 7,064/x
3. Step 3: Cross multiply
   11,690.72x = 17,516.24 × 7,064
4. Step 4: Simplify right side
   11,690.72x = 123,734,719.36
5. Step 5: Solve for x
   x = 123,734,719.36/11,690.72
6. Step 6: Final answer
   x = 10,584.01