Finding the Fourth Proportional to 9,628.94, 13,287.94 and 5,437.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,628.94 : 13,287.94 = 5,437.18 : x
2. Step 2: Convert to fraction form
   9,628.94/13,287.94 = 5,437.18/x
3. Step 3: Cross multiply
   9,628.94x = 13,287.94 × 5,437.18
4. Step 4: Simplify right side
   9,628.94x = 72,248,921.61
5. Step 5: Solve for x
   x = 72,248,921.61/9,628.94
6. Step 6: Final answer
   x = 7,503.31