Finding the Fourth Proportional to 8,583.50, 12,877.50 and 2,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,583.50 : 12,877.50 = 2,427.50 : x
2. Step 2: Convert to fraction form
   8,583.50/12,877.50 = 2,427.50/x
3. Step 3: Cross multiply
   8,583.50x = 12,877.50 × 2,427.50
4. Step 4: Simplify right side
   8,583.50x = 31,260,131.25
5. Step 5: Solve for x
   x = 31,260,131.25/8,583.50
6. Step 6: Final answer
   x = 3,641.89