Finding the Fourth Proportional to 17,328.18, 25,994.72 and 5,638.68

Step by Step Solution

1. Step 1: Write the proportion equation
   17,328.18 : 25,994.72 = 5,638.68 : x
2. Step 2: Convert to fraction form
   17,328.18/25,994.72 = 5,638.68/x
3. Step 3: Cross multiply
   17,328.18x = 25,994.72 × 5,638.68
4. Step 4: Simplify right side
   17,328.18x = 146,575,907.77
5. Step 5: Solve for x
   x = 146,575,907.77/17,328.18
6. Step 6: Final answer
   x = 8,458.82