Finding the Fourth Proportional to 6,894.45, 9,503.31 and 5,436.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,894.45 : 9,503.31 = 5,436.83 : x
2. Step 2: Convert to fraction form
   6,894.45/9,503.31 = 5,436.83/x
3. Step 3: Cross multiply
   6,894.45x = 9,503.31 × 5,436.83
4. Step 4: Simplify right side
   6,894.45x = 51,667,833.39
5. Step 5: Solve for x
   x = 51,667,833.39/6,894.45
6. Step 6: Final answer
   x = 7,494.12