Finding the Fourth Proportional to 25,389.12, 35,032.82 and 15,951

Step by Step Solution

1. Step 1: Write the proportion equation
   25,389.12 : 35,032.82 = 15,951 : x
2. Step 2: Convert to fraction form
   25,389.12/35,032.82 = 15,951/x
3. Step 3: Cross multiply
   25,389.12x = 35,032.82 × 15,951
4. Step 4: Simplify right side
   25,389.12x = 558,808,511.82
5. Step 5: Solve for x
   x = 558,808,511.82/25,389.12
6. Step 6: Final answer
   x = 22,009.76