Finding the Fourth Proportional to 6,436.81, 8,882.06 and 3,603.79

Step by Step Solution

1. Step 1: Write the proportion equation
   6,436.81 : 8,882.06 = 3,603.79 : x
2. Step 2: Convert to fraction form
   6,436.81/8,882.06 = 3,603.79/x
3. Step 3: Cross multiply
   6,436.81x = 8,882.06 × 3,603.79
4. Step 4: Simplify right side
   6,436.81x = 32,009,038.78
5. Step 5: Solve for x
   x = 32,009,038.78/6,436.81
6. Step 6: Final answer
   x = 4,972.81