Finding the Fourth Proportional to 12,615.72, 18,907.48 and 5,593.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,615.72 : 18,907.48 = 5,593.72 : x
2. Step 2: Convert to fraction form
   12,615.72/18,907.48 = 5,593.72/x
3. Step 3: Cross multiply
   12,615.72x = 18,907.48 × 5,593.72
4. Step 4: Simplify right side
   12,615.72x = 105,763,149.03
5. Step 5: Solve for x
   x = 105,763,149.03/12,615.72
6. Step 6: Final answer
   x = 8,383.44