Finding the Fourth Proportional to 9,512.37, 13,123.88 and 5,530.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,512.37 : 13,123.88 = 5,530.23 : x
2. Step 2: Convert to fraction form
   9,512.37/13,123.88 = 5,530.23/x
3. Step 3: Cross multiply
   9,512.37x = 13,123.88 × 5,530.23
4. Step 4: Simplify right side
   9,512.37x = 72,578,047.24
5. Step 5: Solve for x
   x = 72,578,047.24/9,512.37
6. Step 6: Final answer
   x = 7,629.86