Finding the Fourth Proportional to 9,628.77, 13,286.21 and 5,436.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,628.77 : 13,286.21 = 5,436.93 : x
2. Step 2: Convert to fraction form
   9,628.77/13,286.21 = 5,436.93/x
3. Step 3: Cross multiply
   9,628.77x = 13,286.21 × 5,436.93
4. Step 4: Simplify right side
   9,628.77x = 72,236,166.55
5. Step 5: Solve for x
   x = 72,236,166.55/9,628.77
6. Step 6: Final answer
   x = 7,502.12