Finding the Fourth Proportional to 9,403.94, 12,947.93 and 7,984.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,403.94 : 12,947.93 = 7,984.82 : x
2. Step 2: Convert to fraction form
   9,403.94/12,947.93 = 7,984.82/x
3. Step 3: Cross multiply
   9,403.94x = 12,947.93 × 7,984.82
4. Step 4: Simplify right side
   9,403.94x = 103,386,957.73
5. Step 5: Solve for x
   x = 103,386,957.73/9,403.94
6. Step 6: Final answer
   x = 10,994.00