Finding the Fourth Proportional to 9,283.56, 12,811.40 and 5,091.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,283.56 : 12,811.40 = 5,091.80 : x
2. Step 2: Convert to fraction form
   9,283.56/12,811.40 = 5,091.80/x
3. Step 3: Cross multiply
   9,283.56x = 12,811.40 × 5,091.80
4. Step 4: Simplify right side
   9,283.56x = 65,233,086.52
5. Step 5: Solve for x
   x = 65,233,086.52/9,283.56
6. Step 6: Final answer
   x = 7,026.73