Finding the Fourth Proportional to 9,407.75, 12,983.27 and 5,216.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407.75 : 12,983.27 = 5,216.00 : x
2. Step 2: Convert to fraction form
   9,407.75/12,983.27 = 5,216.00/x
3. Step 3: Cross multiply
   9,407.75x = 12,983.27 × 5,216.00
4. Step 4: Simplify right side
   9,407.75x = 67,720,671.40
5. Step 5: Solve for x
   x = 67,720,671.40/9,407.75
6. Step 6: Final answer
   x = 7,198.40