Finding the Fourth Proportional to 11,018.51, 16,531.01 and 4,441.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,018.51 : 16,531.01 = 4,441.31 : x
2. Step 2: Convert to fraction form
   11,018.51/16,531.01 = 4,441.31/x
3. Step 3: Cross multiply
   11,018.51x = 16,531.01 × 4,441.31
4. Step 4: Simplify right side
   11,018.51x = 73,419,317.82
5. Step 5: Solve for x
   x = 73,419,317.82/11,018.51
6. Step 6: Final answer
   x = 6,663.27