Finding the Fourth Proportional to 9,557.37, 13,188.72 and 5,308.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,557.37 : 13,188.72 = 5,308.70 : x
2. Step 2: Convert to fraction form
   9,557.37/13,188.72 = 5,308.70/x
3. Step 3: Cross multiply
   9,557.37x = 13,188.72 × 5,308.70
4. Step 4: Simplify right side
   9,557.37x = 70,014,931.32
5. Step 5: Solve for x
   x = 70,014,931.32/9,557.37
6. Step 6: Final answer
   x = 7,325.75