Finding the Fourth Proportional to 17,663.16, 26,498.31 and 5,183.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,663.16 : 26,498.31 = 5,183.55 : x
2. Step 2: Convert to fraction form
   17,663.16/26,498.31 = 5,183.55/x
3. Step 3: Cross multiply
   17,663.16x = 26,498.31 × 5,183.55
4. Step 4: Simplify right side
   17,663.16x = 137,355,314.80
5. Step 5: Solve for x
   x = 137,355,314.80/17,663.16
6. Step 6: Final answer
   x = 7,776.37