Finding the Fourth Proportional to 10,185.39, 15,258.37 and 5,729.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.39 : 15,258.37 = 5,729.52 : x
2. Step 2: Convert to fraction form
   10,185.39/15,258.37 = 5,729.52/x
3. Step 3: Cross multiply
   10,185.39x = 15,258.37 × 5,729.52
4. Step 4: Simplify right side
   10,185.39x = 87,423,136.08
5. Step 5: Solve for x
   x = 87,423,136.08/10,185.39
6. Step 6: Final answer
   x = 8,583.19