Finding the Fourth Proportional to 9,559.49, 13,188.41 and 7,047.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,559.49 : 13,188.41 = 7,047.57 : x
2. Step 2: Convert to fraction form
   9,559.49/13,188.41 = 7,047.57/x
3. Step 3: Cross multiply
   9,559.49x = 13,188.41 × 7,047.57
4. Step 4: Simplify right side
   9,559.49x = 92,946,322.95
5. Step 5: Solve for x
   x = 92,946,322.95/9,559.49
6. Step 6: Final answer
   x = 9,722.94