Finding the Fourth Proportional to 6,106.32, 9,145.23 and 4,458.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,106.32 : 9,145.23 = 4,458.78 : x
2. Step 2: Convert to fraction form
   6,106.32/9,145.23 = 4,458.78/x
3. Step 3: Cross multiply
   6,106.32x = 9,145.23 × 4,458.78
4. Step 4: Simplify right side
   6,106.32x = 40,776,522.89
5. Step 5: Solve for x
   x = 40,776,522.89/6,106.32
6. Step 6: Final answer
   x = 6,677.76