Finding the Fourth Proportional to 10,435.10, 15,652.71 and 2,643.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,435.10 : 15,652.71 = 2,643.93 : x
2. Step 2: Convert to fraction form
   10,435.10/15,652.71 = 2,643.93/x
3. Step 3: Cross multiply
   10,435.10x = 15,652.71 × 2,643.93
4. Step 4: Simplify right side
   10,435.10x = 41,384,669.55
5. Step 5: Solve for x
   x = 41,384,669.55/10,435.10
6. Step 6: Final answer
   x = 3,965.91