Finding the Fourth Proportional to 11,677.86, 17,516.34 and 7,953.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,677.86 : 17,516.34 = 7,953.48 : x
2. Step 2: Convert to fraction form
   11,677.86/17,516.34 = 7,953.48/x
3. Step 3: Cross multiply
   11,677.86x = 17,516.34 × 7,953.48
4. Step 4: Simplify right side
   11,677.86x = 139,315,859.86
5. Step 5: Solve for x
   x = 139,315,859.86/11,677.86
6. Step 6: Final answer
   x = 11,929.91