Finding the Fourth Proportional to 9,336.94, 12,885.78 and 5,146.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.94 : 12,885.78 = 5,146.00 : x
2. Step 2: Convert to fraction form
   9,336.94/12,885.78 = 5,146.00/x
3. Step 3: Cross multiply
   9,336.94x = 12,885.78 × 5,146.00
4. Step 4: Simplify right side
   9,336.94x = 66,310,210.96
5. Step 5: Solve for x
   x = 66,310,210.96/9,336.94
6. Step 6: Final answer
   x = 7,101.92