Finding the Fourth Proportional to 92,976.53, 139,386.42 and 40,346.37

Step by Step Solution

1. Step 1: Write the proportion equation
   92,976.53 : 139,386.42 = 40,346.37 : x
2. Step 2: Convert to fraction form
   92,976.53/139,386.42 = 40,346.37/x
3. Step 3: Cross multiply
   92,976.53x = 139,386.42 × 40,346.37
4. Step 4: Simplify right side
   92,976.53x = 5,623,736,074.30
5. Step 5: Solve for x
   x = 5,623,736,074.30/92,976.53
6. Step 6: Final answer
   x = 60,485.55