Finding the Fourth Proportional to 10,700.20, 16,055.34 and 4,128.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,700.20 : 16,055.34 = 4,128.76 : x
2. Step 2: Convert to fraction form
   10,700.20/16,055.34 = 4,128.76/x
3. Step 3: Cross multiply
   10,700.20x = 16,055.34 × 4,128.76
4. Step 4: Simplify right side
   10,700.20x = 66,288,645.58
5. Step 5: Solve for x
   x = 66,288,645.58/10,700.20
6. Step 6: Final answer
   x = 6,195.08