Finding the Fourth Proportional to 9,050.66, 12,490.71 and 5,273.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.66 : 12,490.71 = 5,273.63 : x
2. Step 2: Convert to fraction form
   9,050.66/12,490.71 = 5,273.63/x
3. Step 3: Cross multiply
   9,050.66x = 12,490.71 × 5,273.63
4. Step 4: Simplify right side
   9,050.66x = 65,871,382.98
5. Step 5: Solve for x
   x = 65,871,382.98/9,050.66
6. Step 6: Final answer
   x = 7,278.08