Finding the Fourth Proportional to 8,912.00, 12,296.90 and 5,725.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,912.00 : 12,296.90 = 5,725.86 : x
2. Step 2: Convert to fraction form
   8,912.00/12,296.90 = 5,725.86/x
3. Step 3: Cross multiply
   8,912.00x = 12,296.90 × 5,725.86
4. Step 4: Simplify right side
   8,912.00x = 70,410,299.20
5. Step 5: Solve for x
   x = 70,410,299.20/8,912.00
6. Step 6: Final answer
   x = 7,900.62