Finding the Fourth Proportional to 5,444.01, 8,111.93 and 5,179.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,444.01 : 8,111.93 = 5,179.55 : x
2. Step 2: Convert to fraction form
   5,444.01/8,111.93 = 5,179.55/x
3. Step 3: Cross multiply
   5,444.01x = 8,111.93 × 5,179.55
4. Step 4: Simplify right side
   5,444.01x = 42,016,080.57
5. Step 5: Solve for x
   x = 42,016,080.57/5,444.01
6. Step 6: Final answer
   x = 7,717.86