Finding the Fourth Proportional to 10,951.95, 16,447.74 and 10,072.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,951.95 : 16,447.74 = 10,072.88 : x
2. Step 2: Convert to fraction form
   10,951.95/16,447.74 = 10,072.88/x
3. Step 3: Cross multiply
   10,951.95x = 16,447.74 × 10,072.88
4. Step 4: Simplify right side
   10,951.95x = 165,676,111.29
5. Step 5: Solve for x
   x = 165,676,111.29/10,951.95
6. Step 6: Final answer
   x = 15,127.54