Finding the Fourth Proportional to 12,641.55, 18,958.82 and 3,758.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,641.55 : 18,958.82 = 3,758.82 : x
2. Step 2: Convert to fraction form
   12,641.55/18,958.82 = 3,758.82/x
3. Step 3: Cross multiply
   12,641.55x = 18,958.82 × 3,758.82
4. Step 4: Simplify right side
   12,641.55x = 71,262,773.00
5. Step 5: Solve for x
   x = 71,262,773.00/12,641.55
6. Step 6: Final answer
   x = 5,637.19