Finding the Fourth Proportional to 17,327.61, 25,985.62 and 5,638.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,327.61 : 25,985.62 = 5,638.09 : x
2. Step 2: Convert to fraction form
   17,327.61/25,985.62 = 5,638.09/x
3. Step 3: Cross multiply
   17,327.61x = 25,985.62 × 5,638.09
4. Step 4: Simplify right side
   17,327.61x = 146,509,264.27
5. Step 5: Solve for x
   x = 146,509,264.27/17,327.61
6. Step 6: Final answer
   x = 8,455.25