Finding the Fourth Proportional to 18,182.49, 25,091.17 and 10,116.10

Step by Step Solution

1. Step 1: Write the proportion equation
   18,182.49 : 25,091.17 = 10,116.10 : x
2. Step 2: Convert to fraction form
   18,182.49/25,091.17 = 10,116.10/x
3. Step 3: Cross multiply
   18,182.49x = 25,091.17 × 10,116.10
4. Step 4: Simplify right side
   18,182.49x = 253,824,784.84
5. Step 5: Solve for x
   x = 253,824,784.84/18,182.49
6. Step 6: Final answer
   x = 13,959.85