Finding the Fourth Proportional to 9,412.28, 14,111.39 and 5,663.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,412.28 : 14,111.39 = 5,663.18 : x
2. Step 2: Convert to fraction form
   9,412.28/14,111.39 = 5,663.18/x
3. Step 3: Cross multiply
   9,412.28x = 14,111.39 × 5,663.18
4. Step 4: Simplify right side
   9,412.28x = 79,915,256.91
5. Step 5: Solve for x
   x = 79,915,256.91/9,412.28
6. Step 6: Final answer
   x = 8,490.54