Finding the Fourth Proportional to 18,148.43, 25,026.41 and 17,090.15

Step by Step Solution

1. Step 1: Write the proportion equation
   18,148.43 : 25,026.41 = 17,090.15 : x
2. Step 2: Convert to fraction form
   18,148.43/25,026.41 = 17,090.15/x
3. Step 3: Cross multiply
   18,148.43x = 25,026.41 × 17,090.15
4. Step 4: Simplify right side
   18,148.43x = 427,705,100.86
5. Step 5: Solve for x
   x = 427,705,100.86/18,148.43
6. Step 6: Final answer
   x = 23,567.06