Finding the Fourth Proportional to 11,404.98, 15,735.33 and 7,876.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,404.98 : 15,735.33 = 7,876.98 : x
2. Step 2: Convert to fraction form
   11,404.98/15,735.33 = 7,876.98/x
3. Step 3: Cross multiply
   11,404.98x = 15,735.33 × 7,876.98
4. Step 4: Simplify right side
   11,404.98x = 123,946,879.70
5. Step 5: Solve for x
   x = 123,946,879.70/11,404.98
6. Step 6: Final answer
   x = 10,867.79