Finding the Fourth Proportional to 14,051.76, 19,391.42 and 7,764.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,051.76 : 19,391.42 = 7,764.12 : x
2. Step 2: Convert to fraction form
   14,051.76/19,391.42 = 7,764.12/x
3. Step 3: Cross multiply
   14,051.76x = 19,391.42 × 7,764.12
4. Step 4: Simplify right side
   14,051.76x = 150,557,311.85
5. Step 5: Solve for x
   x = 150,557,311.85/14,051.76
6. Step 6: Final answer
   x = 10,714.48