Finding the Fourth Proportional to 10,443.63, 15,665.49 and 2,652.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.63 : 15,665.49 = 2,652.51 : x
2. Step 2: Convert to fraction form
   10,443.63/15,665.49 = 2,652.51/x
3. Step 3: Cross multiply
   10,443.63x = 15,665.49 × 2,652.51
4. Step 4: Simplify right side
   10,443.63x = 41,552,868.88
5. Step 5: Solve for x
   x = 41,552,868.88/10,443.63
6. Step 6: Final answer
   x = 3,978.78