Finding the Fourth Proportional to 14,128.92, 21,195.72 and 4,769.82

Step by Step Solution

1. Step 1: Write the proportion equation
   14,128.92 : 21,195.72 = 4,769.82 : x
2. Step 2: Convert to fraction form
   14,128.92/21,195.72 = 4,769.82/x
3. Step 3: Cross multiply
   14,128.92x = 21,195.72 × 4,769.82
4. Step 4: Simplify right side
   14,128.92x = 101,099,769.17
5. Step 5: Solve for x
   x = 101,099,769.17/14,128.92
6. Step 6: Final answer
   x = 7,155.52