Finding the Fourth Proportional to 18,747, 25,870.89 and 10,363.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,747 : 25,870.89 = 10,363.50 : x
2. Step 2: Convert to fraction form
   18,747/25,870.89 = 10,363.50/x
3. Step 3: Cross multiply
   18,747x = 25,870.89 × 10,363.50
4. Step 4: Simplify right side
   18,747x = 268,112,968.52
5. Step 5: Solve for x
   x = 268,112,968.52/18,747
6. Step 6: Final answer
   x = 14,301.65