Finding the Fourth Proportional to 16,143, 22,278.56 and 9,856.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,143 : 22,278.56 = 9,856.59 : x
2. Step 2: Convert to fraction form
   16,143/22,278.56 = 9,856.59/x
3. Step 3: Cross multiply
   16,143x = 22,278.56 × 9,856.59
4. Step 4: Simplify right side
   16,143x = 219,590,631.71
5. Step 5: Solve for x
   x = 219,590,631.71/16,143
6. Step 6: Final answer
   x = 13,602.84