Finding the Fourth Proportional to 9,603.71, 13,254.15 and 5,628.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,603.71 : 13,254.15 = 5,628.15 : x
2. Step 2: Convert to fraction form
   9,603.71/13,254.15 = 5,628.15/x
3. Step 3: Cross multiply
   9,603.71x = 13,254.15 × 5,628.15
4. Step 4: Simplify right side
   9,603.71x = 74,596,344.32
5. Step 5: Solve for x
   x = 74,596,344.32/9,603.71
6. Step 6: Final answer
   x = 7,767.45