Finding the Fourth Proportional to 11,446.80, 17,160.27 and 5,116.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,446.80 : 17,160.27 = 5,116.86 : x
2. Step 2: Convert to fraction form
   11,446.80/17,160.27 = 5,116.86/x
3. Step 3: Cross multiply
   11,446.80x = 17,160.27 × 5,116.86
4. Step 4: Simplify right side
   11,446.80x = 87,806,699.15
5. Step 5: Solve for x
   x = 87,806,699.15/11,446.80
6. Step 6: Final answer
   x = 7,670.85