Finding the Fourth Proportional to 10,540.58, 15,808.82 and 3,964.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,540.58 : 15,808.82 = 3,964.55 : x
2. Step 2: Convert to fraction form
   10,540.58/15,808.82 = 3,964.55/x
3. Step 3: Cross multiply
   10,540.58x = 15,808.82 × 3,964.55
4. Step 4: Simplify right side
   10,540.58x = 62,674,780.76
5. Step 5: Solve for x
   x = 62,674,780.76/10,540.58
6. Step 6: Final answer
   x = 5,946.05