Finding the Fourth Proportional to 10,091.46, 13,926.27 and 5,615.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.46 : 13,926.27 = 5,615.40 : x
2. Step 2: Convert to fraction form
   10,091.46/13,926.27 = 5,615.40/x
3. Step 3: Cross multiply
   10,091.46x = 13,926.27 × 5,615.40
4. Step 4: Simplify right side
   10,091.46x = 78,201,506.93
5. Step 5: Solve for x
   x = 78,201,506.93/10,091.46
6. Step 6: Final answer
   x = 7,749.28