Finding the Fourth Proportional to 40,404.63, 60,616.49 and 12,702.63

Step by Step Solution

1. Step 1: Write the proportion equation
   40,404.63 : 60,616.49 = 12,702.63 : x
2. Step 2: Convert to fraction form
   40,404.63/60,616.49 = 12,702.63/x
3. Step 3: Cross multiply
   40,404.63x = 60,616.49 × 12,702.63
4. Step 4: Simplify right side
   40,404.63x = 769,988,780.86
5. Step 5: Solve for x
   x = 769,988,780.86/40,404.63
6. Step 6: Final answer
   x = 19,056.94