Finding the Fourth Proportional to 16,856.83, 23,261.74 and 9,782.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,856.83 : 23,261.74 = 9,782.70 : x
2. Step 2: Convert to fraction form
   16,856.83/23,261.74 = 9,782.70/x
3. Step 3: Cross multiply
   16,856.83x = 23,261.74 × 9,782.70
4. Step 4: Simplify right side
   16,856.83x = 227,562,623.90
5. Step 5: Solve for x
   x = 227,562,623.90/16,856.83
6. Step 6: Final answer
   x = 13,499.73