Finding the Fourth Proportional to 11,423.37, 15,764.46 and 6,947.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,423.37 : 15,764.46 = 6,947.31 : x
2. Step 2: Convert to fraction form
   11,423.37/15,764.46 = 6,947.31/x
3. Step 3: Cross multiply
   11,423.37x = 15,764.46 × 6,947.31
4. Step 4: Simplify right side
   11,423.37x = 109,520,590.60
5. Step 5: Solve for x
   x = 109,520,590.60/11,423.37
6. Step 6: Final answer
   x = 9,587.42