Finding the Fourth Proportional to 11,889, 16,404.01 and 7,041.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,889 : 16,404.01 = 7,041.29 : x
2. Step 2: Convert to fraction form
   11,889/16,404.01 = 7,041.29/x
3. Step 3: Cross multiply
   11,889x = 16,404.01 × 7,041.29
4. Step 4: Simplify right side
   11,889x = 115,505,274.35
5. Step 5: Solve for x
   x = 115,505,274.35/11,889
6. Step 6: Final answer
   x = 9,715.31