Finding the Fourth Proportional to 8,355.86, 12,533.76 and 3,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,355.86 : 12,533.76 = 3,425.50 : x
2. Step 2: Convert to fraction form
   8,355.86/12,533.76 = 3,425.50/x
3. Step 3: Cross multiply
   8,355.86x = 12,533.76 × 3,425.50
4. Step 4: Simplify right side
   8,355.86x = 42,934,394.88
5. Step 5: Solve for x
   x = 42,934,394.88/8,355.86
6. Step 6: Final answer
   x = 5,138.24