Finding the Fourth Proportional to 9,680.74, 13,359.42 and 5,488.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,680.74 : 13,359.42 = 5,488.96 : x
2. Step 2: Convert to fraction form
   9,680.74/13,359.42 = 5,488.96/x
3. Step 3: Cross multiply
   9,680.74x = 13,359.42 × 5,488.96
4. Step 4: Simplify right side
   9,680.74x = 73,329,322.00
5. Step 5: Solve for x
   x = 73,329,322.00/9,680.74
6. Step 6: Final answer
   x = 7,574.76