Finding the Fourth Proportional to 11,105.86, 16,663.40 and 4,862.65

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.86 : 16,663.40 = 4,862.65 : x
2. Step 2: Convert to fraction form
   11,105.86/16,663.40 = 4,862.65/x
3. Step 3: Cross multiply
   11,105.86x = 16,663.40 × 4,862.65
4. Step 4: Simplify right side
   11,105.86x = 81,028,257.70
5. Step 5: Solve for x
   x = 81,028,257.70/11,105.86
6. Step 6: Final answer
   x = 7,295.99