Finding the Fourth Proportional to 18,483, 25,506.72 and 10,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,483 : 25,506.72 = 10,099.50 : x
2. Step 2: Convert to fraction form
   18,483/25,506.72 = 10,099.50/x
3. Step 3: Cross multiply
   18,483x = 25,506.72 × 10,099.50
4. Step 4: Simplify right side
   18,483x = 257,605,118.64
5. Step 5: Solve for x
   x = 257,605,118.64/18,483
6. Step 6: Final answer
   x = 13,937.41