Finding the Fourth Proportional to 8,780.86, 13,165.12 and 3,233.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.86 : 13,165.12 = 3,233.50 : x
2. Step 2: Convert to fraction form
   8,780.86/13,165.12 = 3,233.50/x
3. Step 3: Cross multiply
   8,780.86x = 13,165.12 × 3,233.50
4. Step 4: Simplify right side
   8,780.86x = 42,569,374.52
5. Step 5: Solve for x
   x = 42,569,374.52/8,780.86
6. Step 6: Final answer
   x = 4,847.97