Finding the Fourth Proportional to 11,401.32, 17,077.86 and 7,239.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,401.32 : 17,077.86 = 7,239.12 : x
2. Step 2: Convert to fraction form
   11,401.32/17,077.86 = 7,239.12/x
3. Step 3: Cross multiply
   11,401.32x = 17,077.86 × 7,239.12
4. Step 4: Simplify right side
   11,401.32x = 123,628,677.88
5. Step 5: Solve for x
   x = 123,628,677.88/11,401.32
6. Step 6: Final answer
   x = 10,843.37