Finding the Fourth Proportional to 9,964.60, 13,751.15 and 5,488.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.60 : 13,751.15 = 5,488.34 : x
2. Step 2: Convert to fraction form
   9,964.60/13,751.15 = 5,488.34/x
3. Step 3: Cross multiply
   9,964.60x = 13,751.15 × 5,488.34
4. Step 4: Simplify right side
   9,964.60x = 75,470,986.59
5. Step 5: Solve for x
   x = 75,470,986.59/9,964.60
6. Step 6: Final answer
   x = 7,573.91