Finding the Fourth Proportional to 74,034.72, 102,168.72 and 40,500

Step by Step Solution

1. Step 1: Write the proportion equation
   74,034.72 : 102,168.72 = 40,500 : x
2. Step 2: Convert to fraction form
   74,034.72/102,168.72 = 40,500/x
3. Step 3: Cross multiply
   74,034.72x = 102,168.72 × 40,500
4. Step 4: Simplify right side
   74,034.72x = 4,137,833,160
5. Step 5: Solve for x
   x = 4,137,833,160/74,034.72
6. Step 6: Final answer
   x = 55,890.44