Finding the Fourth Proportional to 5,898.82, 8,142.80 and 3,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,898.82 : 8,142.80 = 3,540.50 : x
2. Step 2: Convert to fraction form
   5,898.82/8,142.80 = 3,540.50/x
3. Step 3: Cross multiply
   5,898.82x = 8,142.80 × 3,540.50
4. Step 4: Simplify right side
   5,898.82x = 28,829,583.40
5. Step 5: Solve for x
   x = 28,829,583.40/5,898.82
6. Step 6: Final answer
   x = 4,887.35