Finding the Fourth Proportional to 5,058.84, 6,978.06 and 3,938.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,058.84 : 6,978.06 = 3,938.52 : x
2. Step 2: Convert to fraction form
   5,058.84/6,978.06 = 3,938.52/x
3. Step 3: Cross multiply
   5,058.84x = 6,978.06 × 3,938.52
4. Step 4: Simplify right side
   5,058.84x = 27,483,228.87
5. Step 5: Solve for x
   x = 27,483,228.87/5,058.84
6. Step 6: Final answer
   x = 5,432.71