Finding the Fourth Proportional to 66,243, 91,416.15 and 37,949.70

Step by Step Solution

1. Step 1: Write the proportion equation
   66,243 : 91,416.15 = 37,949.70 : x
2. Step 2: Convert to fraction form
   66,243/91,416.15 = 37,949.70/x
3. Step 3: Cross multiply
   66,243x = 91,416.15 × 37,949.70
4. Step 4: Simplify right side
   66,243x = 3,469,215,467.66
5. Step 5: Solve for x
   x = 3,469,215,467.66/66,243
6. Step 6: Final answer
   x = 52,371.05