Finding the Fourth Proportional to 9,179.63, 12,667.88 and 5,453.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,179.63 : 12,667.88 = 5,453.63 : x
2. Step 2: Convert to fraction form
   9,179.63/12,667.88 = 5,453.63/x
3. Step 3: Cross multiply
   9,179.63x = 12,667.88 × 5,453.63
4. Step 4: Simplify right side
   9,179.63x = 69,085,880.70
5. Step 5: Solve for x
   x = 69,085,880.70/9,179.63
6. Step 6: Final answer
   x = 7,526.00