Finding the Fourth Proportional to 7,887.86, 11,823.81 and 5,116.29

Step by Step Solution

1. Step 1: Write the proportion equation
   7,887.86 : 11,823.81 = 5,116.29 : x
2. Step 2: Convert to fraction form
   7,887.86/11,823.81 = 5,116.29/x
3. Step 3: Cross multiply
   7,887.86x = 11,823.81 × 5,116.29
4. Step 4: Simplify right side
   7,887.86x = 60,494,040.86
5. Step 5: Solve for x
   x = 60,494,040.86/7,887.86
6. Step 6: Final answer
   x = 7,669.26