Finding the Fourth Proportional to 73,085.10, 100,857.72 and 39,551.10

Step by Step Solution

1. Step 1: Write the proportion equation
   73,085.10 : 100,857.72 = 39,551.10 : x
2. Step 2: Convert to fraction form
   73,085.10/100,857.72 = 39,551.10/x
3. Step 3: Cross multiply
   73,085.10x = 100,857.72 × 39,551.10
4. Step 4: Simplify right side
   73,085.10x = 3,989,033,769.49
5. Step 5: Solve for x
   x = 3,989,033,769.49/73,085.10
6. Step 6: Final answer
   x = 54,580.67