Finding the Fourth Proportional to 11,889.86, 17,806.43 and 7,132.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,889.86 : 17,806.43 = 7,132.73 : x
2. Step 2: Convert to fraction form
   11,889.86/17,806.43 = 7,132.73/x
3. Step 3: Cross multiply
   11,889.86x = 17,806.43 × 7,132.73
4. Step 4: Simplify right side
   11,889.86x = 127,008,386.25
5. Step 5: Solve for x
   x = 127,008,386.25/11,889.86
6. Step 6: Final answer
   x = 10,682.08