Finding the Fourth Proportional to 16,780.76, 23,154.88 and 9,705.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,780.76 : 23,154.88 = 9,705.81 : x
2. Step 2: Convert to fraction form
   16,780.76/23,154.88 = 9,705.81/x
3. Step 3: Cross multiply
   16,780.76x = 23,154.88 × 9,705.81
4. Step 4: Simplify right side
   16,780.76x = 224,736,865.85
5. Step 5: Solve for x
   x = 224,736,865.85/16,780.76
6. Step 6: Final answer
   x = 13,392.53