Finding the Fourth Proportional to 5,101.30, 7,039.86 and 3,005.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,101.30 : 7,039.86 = 3,005.42 : x
2. Step 2: Convert to fraction form
   5,101.30/7,039.86 = 3,005.42/x
3. Step 3: Cross multiply
   5,101.30x = 7,039.86 × 3,005.42
4. Step 4: Simplify right side
   5,101.30x = 21,157,736.04
5. Step 5: Solve for x
   x = 21,157,736.04/5,101.30
6. Step 6: Final answer
   x = 4,147.52