Finding the Fourth Proportional to 11,162.71, 16,746.80 and 5,155.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,162.71 : 16,746.80 = 5,155.98 : x
2. Step 2: Convert to fraction form
   11,162.71/16,746.80 = 5,155.98/x
3. Step 3: Cross multiply
   11,162.71x = 16,746.80 × 5,155.98
4. Step 4: Simplify right side
   11,162.71x = 86,346,165.86
5. Step 5: Solve for x
   x = 86,346,165.86/11,162.71
6. Step 6: Final answer
   x = 7,735.23