Finding the Fourth Proportional to 48,016.49, 72,016.02 and 12,947.94

Step by Step Solution

1. Step 1: Write the proportion equation
   48,016.49 : 72,016.02 = 12,947.94 : x
2. Step 2: Convert to fraction form
   48,016.49/72,016.02 = 12,947.94/x
3. Step 3: Cross multiply
   48,016.49x = 72,016.02 × 12,947.94
4. Step 4: Simplify right side
   48,016.49x = 932,459,106.00
5. Step 5: Solve for x
   x = 932,459,106.00/48,016.49
6. Step 6: Final answer
   x = 19,419.56