Finding the Fourth Proportional to 9,333.28, 12,875.76 and 5,353.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,333.28 : 12,875.76 = 5,353.60 : x
2. Step 2: Convert to fraction form
   9,333.28/12,875.76 = 5,353.60/x
3. Step 3: Cross multiply
   9,333.28x = 12,875.76 × 5,353.60
4. Step 4: Simplify right side
   9,333.28x = 68,931,668.74
5. Step 5: Solve for x
   x = 68,931,668.74/9,333.28
6. Step 6: Final answer
   x = 7,385.58