Finding the Fourth Proportional to 10,845.54, 16,272.29 and 7,749.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,845.54 : 16,272.29 = 7,749.91 : x
2. Step 2: Convert to fraction form
   10,845.54/16,272.29 = 7,749.91/x
3. Step 3: Cross multiply
   10,845.54x = 16,272.29 × 7,749.91
4. Step 4: Simplify right side
   10,845.54x = 126,108,822.71
5. Step 5: Solve for x
   x = 126,108,822.71/10,845.54
6. Step 6: Final answer
   x = 11,627.71