Finding the Fourth Proportional to 10,085.76, 15,131.07 and 3,511.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,085.76 : 15,131.07 = 3,511.98 : x
2. Step 2: Convert to fraction form
   10,085.76/15,131.07 = 3,511.98/x
3. Step 3: Cross multiply
   10,085.76x = 15,131.07 × 3,511.98
4. Step 4: Simplify right side
   10,085.76x = 53,140,015.22
5. Step 5: Solve for x
   x = 53,140,015.22/10,085.76
6. Step 6: Final answer
   x = 5,268.82