Finding the Fourth Proportional to 10,825.72, 16,239.03 and 3,430.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,825.72 : 16,239.03 = 3,430.01 : x
2. Step 2: Convert to fraction form
   10,825.72/16,239.03 = 3,430.01/x
3. Step 3: Cross multiply
   10,825.72x = 16,239.03 × 3,430.01
4. Step 4: Simplify right side
   10,825.72x = 55,700,018.14
5. Step 5: Solve for x
   x = 55,700,018.14/10,825.72
6. Step 6: Final answer
   x = 5,145.16