Finding the Fourth Proportional to 17,488.55, 26,233.43 and 5,642.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,488.55 : 26,233.43 = 5,642.30 : x
2. Step 2: Convert to fraction form
   17,488.55/26,233.43 = 5,642.30/x
3. Step 3: Cross multiply
   17,488.55x = 26,233.43 × 5,642.30
4. Step 4: Simplify right side
   17,488.55x = 148,016,882.09
5. Step 5: Solve for x
   x = 148,016,882.09/17,488.55
6. Step 6: Final answer
   x = 8,463.65