Finding the Fourth Proportional to 11,775.94, 17,623.18 and 7,271.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,775.94 : 17,623.18 = 7,271.15 : x
2. Step 2: Convert to fraction form
   11,775.94/17,623.18 = 7,271.15/x
3. Step 3: Cross multiply
   11,775.94x = 17,623.18 × 7,271.15
4. Step 4: Simplify right side
   11,775.94x = 128,140,665.33
5. Step 5: Solve for x
   x = 128,140,665.33/11,775.94
6. Step 6: Final answer
   x = 10,881.57