Finding the Fourth Proportional to 42,699.96, 63,951.42 and 41,223.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,699.96 : 63,951.42 = 41,223.72 : x
2. Step 2: Convert to fraction form
   42,699.96/63,951.42 = 41,223.72/x
3. Step 3: Cross multiply
   42,699.96x = 63,951.42 × 41,223.72
4. Step 4: Simplify right side
   42,699.96x = 2,636,315,431.68
5. Step 5: Solve for x
   x = 2,636,315,431.68/42,699.96
6. Step 6: Final answer
   x = 61,740.47