Finding the Fourth Proportional to 18,505.50, 25,538.00 and 10,122

Step by Step Solution

1. Step 1: Write the proportion equation
   18,505.50 : 25,538.00 = 10,122 : x
2. Step 2: Convert to fraction form
   18,505.50/25,538.00 = 10,122/x
3. Step 3: Cross multiply
   18,505.50x = 25,538.00 × 10,122
4. Step 4: Simplify right side
   18,505.50x = 258,495,585.39
5. Step 5: Solve for x
   x = 258,495,585.39/18,505.50
6. Step 6: Final answer
   x = 13,968.58