Finding the Fourth Proportional to 9,928.22, 13,700.96 and 5,736.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.22 : 13,700.96 = 5,736.47 : x
2. Step 2: Convert to fraction form
   9,928.22/13,700.96 = 5,736.47/x
3. Step 3: Cross multiply
   9,928.22x = 13,700.96 × 5,736.47
4. Step 4: Simplify right side
   9,928.22x = 78,595,048.82
5. Step 5: Solve for x
   x = 78,595,048.82/9,928.22
6. Step 6: Final answer
   x = 7,916.33