Finding the Fourth Proportional to 18,470.06, 25,488.76 and 10,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,470.06 : 25,488.76 = 10,086.56 : x
2. Step 2: Convert to fraction form
   18,470.06/25,488.76 = 10,086.56/x
3. Step 3: Cross multiply
   18,470.06x = 25,488.76 × 10,086.56
4. Step 4: Simplify right side
   18,470.06x = 257,093,907.07
5. Step 5: Solve for x
   x = 257,093,907.07/18,470.06
6. Step 6: Final answer
   x = 13,919.49