Finding the Fourth Proportional to 12,506.64, 18,758.59 and 3,739.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,506.64 : 18,758.59 = 3,739.50 : x
2. Step 2: Convert to fraction form
   12,506.64/18,758.59 = 3,739.50/x
3. Step 3: Cross multiply
   12,506.64x = 18,758.59 × 3,739.50
4. Step 4: Simplify right side
   12,506.64x = 70,147,737.96
5. Step 5: Solve for x
   x = 70,147,737.96/12,506.64
6. Step 6: Final answer
   x = 5,608.84