Finding the Fourth Proportional to 7,448.71, 10,278.81 and 4,091.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,448.71 : 10,278.81 = 4,091.96 : x
2. Step 2: Convert to fraction form
   7,448.71/10,278.81 = 4,091.96/x
3. Step 3: Cross multiply
   7,448.71x = 10,278.81 × 4,091.96
4. Step 4: Simplify right side
   7,448.71x = 42,060,479.37
5. Step 5: Solve for x
   x = 42,060,479.37/7,448.71
6. Step 6: Final answer
   x = 5,646.68