Finding the Fourth Proportional to 10,507.39, 15,763.39 and 3,112.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,507.39 : 15,763.39 = 3,112.42 : x
2. Step 2: Convert to fraction form
   10,507.39/15,763.39 = 3,112.42/x
3. Step 3: Cross multiply
   10,507.39x = 15,763.39 × 3,112.42
4. Step 4: Simplify right side
   10,507.39x = 49,062,290.30
5. Step 5: Solve for x
   x = 49,062,290.30/10,507.39
6. Step 6: Final answer
   x = 4,669.31