Finding the Fourth Proportional to 10,087.04, 15,132.72 and 3,161

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.04 : 15,132.72 = 3,161 : x
2. Step 2: Convert to fraction form
   10,087.04/15,132.72 = 3,161/x
3. Step 3: Cross multiply
   10,087.04x = 15,132.72 × 3,161
4. Step 4: Simplify right side
   10,087.04x = 47,834,527.92
5. Step 5: Solve for x
   x = 47,834,527.92/10,087.04
6. Step 6: Final answer
   x = 4,742.18