Finding the Fourth Proportional to 5,076.42, 7,005.42 and 2,838.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,076.42 : 7,005.42 = 2,838.30 : x
2. Step 2: Convert to fraction form
   5,076.42/7,005.42 = 2,838.30/x
3. Step 3: Cross multiply
   5,076.42x = 7,005.42 × 2,838.30
4. Step 4: Simplify right side
   5,076.42x = 19,883,483.59
5. Step 5: Solve for x
   x = 19,883,483.59/5,076.42
6. Step 6: Final answer
   x = 3,916.83