Finding the Fourth Proportional to 17,618.31, 26,429.90 and 5,928.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,618.31 : 26,429.90 = 5,928.80 : x
2. Step 2: Convert to fraction form
   17,618.31/26,429.90 = 5,928.80/x
3. Step 3: Cross multiply
   17,618.31x = 26,429.90 × 5,928.80
4. Step 4: Simplify right side
   17,618.31x = 156,697,429.33
5. Step 5: Solve for x
   x = 156,697,429.33/17,618.31
6. Step 6: Final answer
   x = 8,894.01