Finding the Fourth Proportional to 10,435.38, 15,645.33 and 3,860.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,435.38 : 15,645.33 = 3,860.34 : x
2. Step 2: Convert to fraction form
   10,435.38/15,645.33 = 3,860.34/x
3. Step 3: Cross multiply
   10,435.38x = 15,645.33 × 3,860.34
4. Step 4: Simplify right side
   10,435.38x = 60,396,293.21
5. Step 5: Solve for x
   x = 60,396,293.21/10,435.38
6. Step 6: Final answer
   x = 5,787.65