Finding the Fourth Proportional to 10,088.69, 15,147.08 and 5,161.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,088.69 : 15,147.08 = 5,161.73 : x
2. Step 2: Convert to fraction form
   10,088.69/15,147.08 = 5,161.73/x
3. Step 3: Cross multiply
   10,088.69x = 15,147.08 × 5,161.73
4. Step 4: Simplify right side
   10,088.69x = 78,185,111.44
5. Step 5: Solve for x
   x = 78,185,111.44/10,088.69
6. Step 6: Final answer
   x = 7,749.78