Finding the Fourth Proportional to 9,964.32, 13,750.46 and 5,488.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.32 : 13,750.46 = 5,488.05 : x
2. Step 2: Convert to fraction form
   9,964.32/13,750.46 = 5,488.05/x
3. Step 3: Cross multiply
   9,964.32x = 13,750.46 × 5,488.05
4. Step 4: Simplify right side
   9,964.32x = 75,463,256.71
5. Step 5: Solve for x
   x = 75,463,256.71/9,964.32
6. Step 6: Final answer
   x = 7,573.35