Finding the Fourth Proportional to 6,428.50, 8,872.06 and 3,634.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,428.50 : 8,872.06 = 3,634.18 : x
2. Step 2: Convert to fraction form
   6,428.50/8,872.06 = 3,634.18/x
3. Step 3: Cross multiply
   6,428.50x = 8,872.06 × 3,634.18
4. Step 4: Simplify right side
   6,428.50x = 32,242,663.01
5. Step 5: Solve for x
   x = 32,242,663.01/6,428.50
6. Step 6: Final answer
   x = 5,015.58