Finding the Fourth Proportional to 65,172.19, 89,916.71 and 36,487.62

Step by Step Solution

1. Step 1: Write the proportion equation
   65,172.19 : 89,916.71 = 36,487.62 : x
2. Step 2: Convert to fraction form
   65,172.19/89,916.71 = 36,487.62/x
3. Step 3: Cross multiply
   65,172.19x = 89,916.71 × 36,487.62
4. Step 4: Simplify right side
   65,172.19x = 3,280,846,563.69
5. Step 5: Solve for x
   x = 3,280,846,563.69/65,172.19
6. Step 6: Final answer
   x = 50,341.21