Finding the Fourth Proportional to 13,036.58, 17,989.32 and 7,730.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,036.58 : 17,989.32 = 7,730.54 : x
2. Step 2: Convert to fraction form
   13,036.58/17,989.32 = 7,730.54/x
3. Step 3: Cross multiply
   13,036.58x = 17,989.32 × 7,730.54
4. Step 4: Simplify right side
   13,036.58x = 139,067,157.83
5. Step 5: Solve for x
   x = 139,067,157.83/13,036.58
6. Step 6: Final answer
   x = 10,667.46