Finding the Fourth Proportional to 43,216.50, 64,780.34 and 16,556.24

Step by Step Solution

1. Step 1: Write the proportion equation
   43,216.50 : 64,780.34 = 16,556.24 : x
2. Step 2: Convert to fraction form
   43,216.50/64,780.34 = 16,556.24/x
3. Step 3: Cross multiply
   43,216.50x = 64,780.34 × 16,556.24
4. Step 4: Simplify right side
   43,216.50x = 1,072,518,856.32
5. Step 5: Solve for x
   x = 1,072,518,856.32/43,216.50
6. Step 6: Final answer
   x = 24,817.35