Finding the Fourth Proportional to 10,111.43, 15,166.62 and 3,874.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111.43 : 15,166.62 = 3,874.43 : x
2. Step 2: Convert to fraction form
   10,111.43/15,166.62 = 3,874.43/x
3. Step 3: Cross multiply
   10,111.43x = 15,166.62 × 3,874.43
4. Step 4: Simplify right side
   10,111.43x = 58,761,931.69
5. Step 5: Solve for x
   x = 58,761,931.69/10,111.43
6. Step 6: Final answer
   x = 5,811.44