Finding the Fourth Proportional to 42,085.96, 63,126.76 and 12,504.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,085.96 : 63,126.76 = 12,504.04 : x
2. Step 2: Convert to fraction form
   42,085.96/63,126.76 = 12,504.04/x
3. Step 3: Cross multiply
   42,085.96x = 63,126.76 × 12,504.04
4. Step 4: Simplify right side
   42,085.96x = 789,339,532.11
5. Step 5: Solve for x
   x = 789,339,532.11/42,085.96
6. Step 6: Final answer
   x = 18,755.41