Finding the Fourth Proportional to 10,091.53, 13,926.34 and 5,615.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.53 : 13,926.34 = 5,615.31 : x
2. Step 2: Convert to fraction form
   10,091.53/13,926.34 = 5,615.31/x
3. Step 3: Cross multiply
   10,091.53x = 13,926.34 × 5,615.31
4. Step 4: Simplify right side
   10,091.53x = 78,200,716.27
5. Step 5: Solve for x
   x = 78,200,716.27/10,091.53
6. Step 6: Final answer
   x = 7,749.14