Finding the Fourth Proportional to 16,507.56, 22,780.30 and 8,953.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,507.56 : 22,780.30 = 8,953.82 : x
2. Step 2: Convert to fraction form
   16,507.56/22,780.30 = 8,953.82/x
3. Step 3: Cross multiply
   16,507.56x = 22,780.30 × 8,953.82
4. Step 4: Simplify right side
   16,507.56x = 203,970,705.75
5. Step 5: Solve for x
   x = 203,970,705.75/16,507.56
6. Step 6: Final answer
   x = 12,356.20