Finding the Fourth Proportional to 34,016.10, 51,016.86 and 10,639.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,016.10 : 51,016.86 = 10,639.50 : x
2. Step 2: Convert to fraction form
   34,016.10/51,016.86 = 10,639.50/x
3. Step 3: Cross multiply
   34,016.10x = 51,016.86 × 10,639.50
4. Step 4: Simplify right side
   34,016.10x = 542,793,881.97
5. Step 5: Solve for x
   x = 542,793,881.97/34,016.10
6. Step 6: Final answer
   x = 15,956.97