Finding the Fourth Proportional to 7,448.79, 10,278.80 and 4,091.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,448.79 : 10,278.80 = 4,091.82 : x
2. Step 2: Convert to fraction form
   7,448.79/10,278.80 = 4,091.82/x
3. Step 3: Cross multiply
   7,448.79x = 10,278.80 × 4,091.82
4. Step 4: Simplify right side
   7,448.79x = 42,058,978.96
5. Step 5: Solve for x
   x = 42,058,978.96/7,448.79
6. Step 6: Final answer
   x = 5,646.42