Finding the Fourth Proportional to 10,896.51, 16,342.64 and 9,059.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,896.51 : 16,342.64 = 9,059.43 : x
2. Step 2: Convert to fraction form
   10,896.51/16,342.64 = 9,059.43/x
3. Step 3: Cross multiply
   10,896.51x = 16,342.64 × 9,059.43
4. Step 4: Simplify right side
   10,896.51x = 148,055,003.10
5. Step 5: Solve for x
   x = 148,055,003.10/10,896.51
6. Step 6: Final answer
   x = 13,587.38