Finding the Fourth Proportional to 28,300.24, 42,459.25 and 11,668.10

Step by Step Solution

1. Step 1: Write the proportion equation
   28,300.24 : 42,459.25 = 11,668.10 : x
2. Step 2: Convert to fraction form
   28,300.24/42,459.25 = 11,668.10/x
3. Step 3: Cross multiply
   28,300.24x = 42,459.25 × 11,668.10
4. Step 4: Simplify right side
   28,300.24x = 495,418,774.93
5. Step 5: Solve for x
   x = 495,418,774.93/28,300.24
6. Step 6: Final answer
   x = 17,505.82