Finding the Fourth Proportional to 9,438.56, 13,019.42 and 6,789.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,438.56 : 13,019.42 = 6,789.52 : x
2. Step 2: Convert to fraction form
   9,438.56/13,019.42 = 6,789.52/x
3. Step 3: Cross multiply
   9,438.56x = 13,019.42 × 6,789.52
4. Step 4: Simplify right side
   9,438.56x = 88,395,612.48
5. Step 5: Solve for x
   x = 88,395,612.48/9,438.56
6. Step 6: Final answer
   x = 9,365.37