Finding the Fourth Proportional to 10,113.71, 15,164.22 and 3,091.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,113.71 : 15,164.22 = 3,091.40 : x
2. Step 2: Convert to fraction form
   10,113.71/15,164.22 = 3,091.40/x
3. Step 3: Cross multiply
   10,113.71x = 15,164.22 × 3,091.40
4. Step 4: Simplify right side
   10,113.71x = 46,878,593.89
5. Step 5: Solve for x
   x = 46,878,593.89/10,113.71
6. Step 6: Final answer
   x = 4,635.16