Finding the Fourth Proportional to 74,142.72, 102,317.04 and 40,608

Step by Step Solution

1. Step 1: Write the proportion equation
   74,142.72 : 102,317.04 = 40,608 : x
2. Step 2: Convert to fraction form
   74,142.72/102,317.04 = 40,608/x
3. Step 3: Cross multiply
   74,142.72x = 102,317.04 × 40,608
4. Step 4: Simplify right side
   74,142.72x = 4,154,890,360.32
5. Step 5: Solve for x
   x = 4,154,890,360.32/74,142.72
6. Step 6: Final answer
   x = 56,039.09