Finding the Fourth Proportional to 10,902.03, 14,946.81 and 10,705.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,902.03 : 14,946.81 = 10,705.20 : x
2. Step 2: Convert to fraction form
   10,902.03/14,946.81 = 10,705.20/x
3. Step 3: Cross multiply
   10,902.03x = 14,946.81 × 10,705.20
4. Step 4: Simplify right side
   10,902.03x = 160,008,590.41
5. Step 5: Solve for x
   x = 160,008,590.41/10,902.03
6. Step 6: Final answer
   x = 14,676.95