Finding the Fourth Proportional to 42,104.96, 63,168.48 and 12,523.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,104.96 : 63,168.48 = 12,523.04 : x
2. Step 2: Convert to fraction form
   42,104.96/63,168.48 = 12,523.04/x
3. Step 3: Cross multiply
   42,104.96x = 63,168.48 × 12,523.04
4. Step 4: Simplify right side
   42,104.96x = 791,061,401.78
5. Step 5: Solve for x
   x = 791,061,401.78/42,104.96
6. Step 6: Final answer
   x = 18,787.84