Finding the Fourth Proportional to 10,961.42, 16,443.03 and 4,721.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,961.42 : 16,443.03 = 4,721.58 : x
2. Step 2: Convert to fraction form
   10,961.42/16,443.03 = 4,721.58/x
3. Step 3: Cross multiply
   10,961.42x = 16,443.03 × 4,721.58
4. Step 4: Simplify right side
   10,961.42x = 77,637,081.59
5. Step 5: Solve for x
   x = 77,637,081.59/10,961.42
6. Step 6: Final answer
   x = 7,082.76