Finding the Fourth Proportional to 10,091.56, 13,927.01 and 5,615.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.56 : 13,927.01 = 5,615.31 : x
2. Step 2: Convert to fraction form
   10,091.56/13,927.01 = 5,615.31/x
3. Step 3: Cross multiply
   10,091.56x = 13,927.01 × 5,615.31
4. Step 4: Simplify right side
   10,091.56x = 78,204,530.47
5. Step 5: Solve for x
   x = 78,204,530.47/10,091.56
6. Step 6: Final answer
   x = 7,749.50