Finding the Fourth Proportional to 7,155.85, 10,733.56 and 1,961.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,155.85 : 10,733.56 = 1,961.72 : x
2. Step 2: Convert to fraction form
   7,155.85/10,733.56 = 1,961.72/x
3. Step 3: Cross multiply
   7,155.85x = 10,733.56 × 1,961.72
4. Step 4: Simplify right side
   7,155.85x = 21,056,239.32
5. Step 5: Solve for x
   x = 21,056,239.32/7,155.85
6. Step 6: Final answer
   x = 2,942.52