Finding the Fourth Proportional to 9,382.47, 12,943.78 and 5,402.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,382.47 : 12,943.78 = 5,402.73 : x
2. Step 2: Convert to fraction form
   9,382.47/12,943.78 = 5,402.73/x
3. Step 3: Cross multiply
   9,382.47x = 12,943.78 × 5,402.73
4. Step 4: Simplify right side
   9,382.47x = 69,931,783.55
5. Step 5: Solve for x
   x = 69,931,783.55/9,382.47
6. Step 6: Final answer
   x = 7,453.45