Finding the Fourth Proportional to 8,929.34, 13,379.42 and 5,631.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,929.34 : 13,379.42 = 5,631.83 : x
2. Step 2: Convert to fraction form
   8,929.34/13,379.42 = 5,631.83/x
3. Step 3: Cross multiply
   8,929.34x = 13,379.42 × 5,631.83
4. Step 4: Simplify right side
   8,929.34x = 75,350,523.88
5. Step 5: Solve for x
   x = 75,350,523.88/8,929.34
6. Step 6: Final answer
   x = 8,438.54