Finding the Fourth Proportional to 11,756.71, 17,632.72 and 5,515.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,756.71 : 17,632.72 = 5,515.12 : x
2. Step 2: Convert to fraction form
   11,756.71/17,632.72 = 5,515.12/x
3. Step 3: Cross multiply
   11,756.71x = 17,632.72 × 5,515.12
4. Step 4: Simplify right side
   11,756.71x = 97,246,566.73
5. Step 5: Solve for x
   x = 97,246,566.73/11,756.71
6. Step 6: Final answer
   x = 8,271.58