Finding the Fourth Proportional to 13,142.46, 19,714.94 and 4,377.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,142.46 : 19,714.94 = 4,377.98 : x
2. Step 2: Convert to fraction form
   13,142.46/19,714.94 = 4,377.98/x
3. Step 3: Cross multiply
   13,142.46x = 19,714.94 × 4,377.98
4. Step 4: Simplify right side
   13,142.46x = 86,311,613.02
5. Step 5: Solve for x
   x = 86,311,613.02/13,142.46
6. Step 6: Final answer
   x = 6,567.39