Finding the Fourth Proportional to 9,558.31, 13,190.43 and 5,366.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,558.31 : 13,190.43 = 5,366.56 : x
2. Step 2: Convert to fraction form
   9,558.31/13,190.43 = 5,366.56/x
3. Step 3: Cross multiply
   9,558.31x = 13,190.43 × 5,366.56
4. Step 4: Simplify right side
   9,558.31x = 70,787,234.02
5. Step 5: Solve for x
   x = 70,787,234.02/9,558.31
6. Step 6: Final answer
   x = 7,405.83