Finding the Fourth Proportional to 5,978.56, 8,957.02 and 3,342.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.56 : 8,957.02 = 3,342.91 : x
2. Step 2: Convert to fraction form
   5,978.56/8,957.02 = 3,342.91/x
3. Step 3: Cross multiply
   5,978.56x = 8,957.02 × 3,342.91
4. Step 4: Simplify right side
   5,978.56x = 29,942,511.73
5. Step 5: Solve for x
   x = 29,942,511.73/5,978.56
6. Step 6: Final answer
   x = 5,008.32