Finding the Fourth Proportional to 66,621.38, 91,942.73 and 37,942.25

Step by Step Solution

1. Step 1: Write the proportion equation
   66,621.38 : 91,942.73 = 37,942.25 : x
2. Step 2: Convert to fraction form
   66,621.38/91,942.73 = 37,942.25/x
3. Step 3: Cross multiply
   66,621.38x = 91,942.73 × 37,942.25
4. Step 4: Simplify right side
   66,621.38x = 3,488,513,397.92
5. Step 5: Solve for x
   x = 3,488,513,397.92/66,621.38
6. Step 6: Final answer
   x = 52,363.28