Finding the Fourth Proportional to 16,827.63, 25,243.89 and 5,139.33

Step by Step Solution

1. Step 1: Write the proportion equation
   16,827.63 : 25,243.89 = 5,139.33 : x
2. Step 2: Convert to fraction form
   16,827.63/25,243.89 = 5,139.33/x
3. Step 3: Cross multiply
   16,827.63x = 25,243.89 × 5,139.33
4. Step 4: Simplify right side
   16,827.63x = 129,736,681.19
5. Step 5: Solve for x
   x = 129,736,681.19/16,827.63
6. Step 6: Final answer
   x = 7,709.74