Finding the Fourth Proportional to 13,180.59, 19,763.60 and 4,410.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,180.59 : 19,763.60 = 4,410.72 : x
2. Step 2: Convert to fraction form
   13,180.59/19,763.60 = 4,410.72/x
3. Step 3: Cross multiply
   13,180.59x = 19,763.60 × 4,410.72
4. Step 4: Simplify right side
   13,180.59x = 87,171,683.74
5. Step 5: Solve for x
   x = 87,171,683.74/13,180.59
6. Step 6: Final answer
   x = 6,613.64