Finding the Fourth Proportional to 17,388.12, 26,086.50 and 5,076.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,388.12 : 26,086.50 = 5,076.12 : x
2. Step 2: Convert to fraction form
   17,388.12/26,086.50 = 5,076.12/x
3. Step 3: Cross multiply
   17,388.12x = 26,086.50 × 5,076.12
4. Step 4: Simplify right side
   17,388.12x = 132,418,204.38
5. Step 5: Solve for x
   x = 132,418,204.38/17,388.12
6. Step 6: Final answer
   x = 7,615.44