Finding the Fourth Proportional to 5,994.54, 8,978.58 and 3,528.90

Step by Step Solution

1. Step 1: Write the proportion equation
   5,994.54 : 8,978.58 = 3,528.90 : x
2. Step 2: Convert to fraction form
   5,994.54/8,978.58 = 3,528.90/x
3. Step 3: Cross multiply
   5,994.54x = 8,978.58 × 3,528.90
4. Step 4: Simplify right side
   5,994.54x = 31,684,510.96
5. Step 5: Solve for x
   x = 31,684,510.96/5,994.54
6. Step 6: Final answer
   x = 5,285.56