Finding the Fourth Proportional to 7,100.88, 10,638.36 and 3,964.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.88 : 10,638.36 = 3,964.56 : x
2. Step 2: Convert to fraction form
   7,100.88/10,638.36 = 3,964.56/x
3. Step 3: Cross multiply
   7,100.88x = 10,638.36 × 3,964.56
4. Step 4: Simplify right side
   7,100.88x = 42,176,416.52
5. Step 5: Solve for x
   x = 42,176,416.52/7,100.88
6. Step 6: Final answer
   x = 5,939.60