Finding the Fourth Proportional to 8,806.56, 13,200.81 and 3,875.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,806.56 : 13,200.81 = 3,875.28 : x
2. Step 2: Convert to fraction form
   8,806.56/13,200.81 = 3,875.28/x
3. Step 3: Cross multiply
   8,806.56x = 13,200.81 × 3,875.28
4. Step 4: Simplify right side
   8,806.56x = 51,156,834.98
5. Step 5: Solve for x
   x = 51,156,834.98/8,806.56
6. Step 6: Final answer
   x = 5,808.95