Finding the Fourth Proportional to 8,754.81, 13,128.87 and 3,756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,754.81 : 13,128.87 = 3,756.72 : x
2. Step 2: Convert to fraction form
   8,754.81/13,128.87 = 3,756.72/x
3. Step 3: Cross multiply
   8,754.81x = 13,128.87 × 3,756.72
4. Step 4: Simplify right side
   8,754.81x = 49,321,488.51
5. Step 5: Solve for x
   x = 49,321,488.51/8,754.81
6. Step 6: Final answer
   x = 5,633.64