Finding the Fourth Proportional to 8,525.61, 12,783.78 and 4,581.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,525.61 : 12,783.78 = 4,581.59 : x
2. Step 2: Convert to fraction form
   8,525.61/12,783.78 = 4,581.59/x
3. Step 3: Cross multiply
   8,525.61x = 12,783.78 × 4,581.59
4. Step 4: Simplify right side
   8,525.61x = 58,569,974.69
5. Step 5: Solve for x
   x = 58,569,974.69/8,525.61
6. Step 6: Final answer
   x = 6,869.89