Finding the Fourth Proportional to 9,557.32, 13,189.20 and 5,365.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,557.32 : 13,189.20 = 5,365.57 : x
2. Step 2: Convert to fraction form
   9,557.32/13,189.20 = 5,365.57/x
3. Step 3: Cross multiply
   9,557.32x = 13,189.20 × 5,365.57
4. Step 4: Simplify right side
   9,557.32x = 70,767,575.84
5. Step 5: Solve for x
   x = 70,767,575.84/9,557.32
6. Step 6: Final answer
   x = 7,404.54