Finding the Fourth Proportional to 9,153.51, 12,627.60 and 5,375.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,153.51 : 12,627.60 = 5,375.45 : x
2. Step 2: Convert to fraction form
   9,153.51/12,627.60 = 5,375.45/x
3. Step 3: Cross multiply
   9,153.51x = 12,627.60 × 5,375.45
4. Step 4: Simplify right side
   9,153.51x = 67,879,005.54
5. Step 5: Solve for x
   x = 67,879,005.54/9,153.51
6. Step 6: Final answer
   x = 7,415.63