Finding the Fourth Proportional to 9,865.89, 14,796.06 and 2,748.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,865.89 : 14,796.06 = 2,748.51 : x
2. Step 2: Convert to fraction form
   9,865.89/14,796.06 = 2,748.51/x
3. Step 3: Cross multiply
   9,865.89x = 14,796.06 × 2,748.51
4. Step 4: Simplify right side
   9,865.89x = 40,667,118.87
5. Step 5: Solve for x
   x = 40,667,118.87/9,865.89
6. Step 6: Final answer
   x = 4,121.99