Finding the Fourth Proportional to 10,191.15, 14,063.64 and 5,714.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,191.15 : 14,063.64 = 5,714.88 : x
2. Step 2: Convert to fraction form
   10,191.15/14,063.64 = 5,714.88/x
3. Step 3: Cross multiply
   10,191.15x = 14,063.64 × 5,714.88
4. Step 4: Simplify right side
   10,191.15x = 80,372,014.96
5. Step 5: Solve for x
   x = 80,372,014.96/10,191.15
6. Step 6: Final answer
   x = 7,886.45