Finding the Fourth Proportional to 14,016.71, 21,037.37 and 7,783.76

Step by Step Solution

1. Step 1: Write the proportion equation
   14,016.71 : 21,037.37 = 7,783.76 : x
2. Step 2: Convert to fraction form
   14,016.71/21,037.37 = 7,783.76/x
3. Step 3: Cross multiply
   14,016.71x = 21,037.37 × 7,783.76
4. Step 4: Simplify right side
   14,016.71x = 163,749,896.57
5. Step 5: Solve for x
   x = 163,749,896.57/14,016.71
6. Step 6: Final answer
   x = 11,682.48