Finding the Fourth Proportional to 5,643.95, 7,790.81 and 5,494.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,643.95 : 7,790.81 = 5,494.91 : x
2. Step 2: Convert to fraction form
   5,643.95/7,790.81 = 5,494.91/x
3. Step 3: Cross multiply
   5,643.95x = 7,790.81 × 5,494.91
4. Step 4: Simplify right side
   5,643.95x = 42,809,733.35
5. Step 5: Solve for x
   x = 42,809,733.35/5,643.95
6. Step 6: Final answer
   x = 7,585.07