Finding the Fourth Proportional to 6,431.56, 8,875.42 and 3,598.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,431.56 : 8,875.42 = 3,598.76 : x
2. Step 2: Convert to fraction form
   6,431.56/8,875.42 = 3,598.76/x
3. Step 3: Cross multiply
   6,431.56x = 8,875.42 × 3,598.76
4. Step 4: Simplify right side
   6,431.56x = 31,940,506.48
5. Step 5: Solve for x
   x = 31,940,506.48/6,431.56
6. Step 6: Final answer
   x = 4,966.21