Finding the Fourth Proportional to 9,762.12, 13,471.72 and 5,513.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,762.12 : 13,471.72 = 5,513.37 : x
2. Step 2: Convert to fraction form
   9,762.12/13,471.72 = 5,513.37/x
3. Step 3: Cross multiply
   9,762.12x = 13,471.72 × 5,513.37
4. Step 4: Simplify right side
   9,762.12x = 74,274,512.59
5. Step 5: Solve for x
   x = 74,274,512.59/9,762.12
6. Step 6: Final answer
   x = 7,608.44