Finding the Fourth Proportional to 73,450.50, 101,361.72 and 39,916.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,450.50 : 101,361.72 = 39,916.50 : x
2. Step 2: Convert to fraction form
   73,450.50/101,361.72 = 39,916.50/x
3. Step 3: Cross multiply
   73,450.50x = 101,361.72 × 39,916.50
4. Step 4: Simplify right side
   73,450.50x = 4,046,005,096.38
5. Step 5: Solve for x
   x = 4,046,005,096.38/73,450.50
6. Step 6: Final answer
   x = 55,084.79