Finding the Fourth Proportional to 10,155.81, 15,235.16 and 3,136.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.81 : 15,235.16 = 3,136.42 : x
2. Step 2: Convert to fraction form
   10,155.81/15,235.16 = 3,136.42/x
3. Step 3: Cross multiply
   10,155.81x = 15,235.16 × 3,136.42
4. Step 4: Simplify right side
   10,155.81x = 47,783,863.89
5. Step 5: Solve for x
   x = 47,783,863.89/10,155.81
6. Step 6: Final answer
   x = 4,705.07