Finding the Fourth Proportional to 8,612.50, 12,918.82 and 2,372.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,612.50 : 12,918.82 = 2,372.86 : x
2. Step 2: Convert to fraction form
   8,612.50/12,918.82 = 2,372.86/x
3. Step 3: Cross multiply
   8,612.50x = 12,918.82 × 2,372.86
4. Step 4: Simplify right side
   8,612.50x = 30,654,513.00
5. Step 5: Solve for x
   x = 30,654,513.00/8,612.50
6. Step 6: Final answer
   x = 3,559.31