Finding the Fourth Proportional to 14,128.92, 19,498.15 and 7,756.11

Step by Step Solution

1. Step 1: Write the proportion equation
   14,128.92 : 19,498.15 = 7,756.11 : x
2. Step 2: Convert to fraction form
   14,128.92/19,498.15 = 7,756.11/x
3. Step 3: Cross multiply
   14,128.92x = 19,498.15 × 7,756.11
4. Step 4: Simplify right side
   14,128.92x = 151,229,776.81
5. Step 5: Solve for x
   x = 151,229,776.81/14,128.92
6. Step 6: Final answer
   x = 10,703.56