Finding the Fourth Proportional to 10,842.15, 16,171.61 and 10,514.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,842.15 : 16,171.61 = 10,514.01 : x
2. Step 2: Convert to fraction form
   10,842.15/16,171.61 = 10,514.01/x
3. Step 3: Cross multiply
   10,842.15x = 16,171.61 × 10,514.01
4. Step 4: Simplify right side
   10,842.15x = 170,028,362.11
5. Step 5: Solve for x
   x = 170,028,362.11/10,842.15
6. Step 6: Final answer
   x = 15,682.17