Finding the Fourth Proportional to 9,964.38, 13,750.70 and 5,488.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.38 : 13,750.70 = 5,488.14 : x
2. Step 2: Convert to fraction form
   9,964.38/13,750.70 = 5,488.14/x
3. Step 3: Cross multiply
   9,964.38x = 13,750.70 × 5,488.14
4. Step 4: Simplify right side
   9,964.38x = 75,465,780.42
5. Step 5: Solve for x
   x = 75,465,780.42/9,964.38
6. Step 6: Final answer
   x = 7,573.56