Finding the Fourth Proportional to 9,612.57, 14,409.00 and 3,687.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,612.57 : 14,409.00 = 3,687.86 : x
2. Step 2: Convert to fraction form
   9,612.57/14,409.00 = 3,687.86/x
3. Step 3: Cross multiply
   9,612.57x = 14,409.00 × 3,687.86
4. Step 4: Simplify right side
   9,612.57x = 53,138,284.26
5. Step 5: Solve for x
   x = 53,138,284.26/9,612.57
6. Step 6: Final answer
   x = 5,528.00