Finding the Fourth Proportional to 14,043.12, 19,379.57 and 7,755.49

Step by Step Solution

1. Step 1: Write the proportion equation
   14,043.12 : 19,379.57 = 7,755.49 : x
2. Step 2: Convert to fraction form
   14,043.12/19,379.57 = 7,755.49/x
3. Step 3: Cross multiply
   14,043.12x = 19,379.57 × 7,755.49
4. Step 4: Simplify right side
   14,043.12x = 150,298,061.34
5. Step 5: Solve for x
   x = 150,298,061.34/14,043.12
6. Step 6: Final answer
   x = 10,702.61