Finding the Fourth Proportional to 65,906.19, 90,941.40 and 37,215.18

Step by Step Solution

1. Step 1: Write the proportion equation
   65,906.19 : 90,941.40 = 37,215.18 : x
2. Step 2: Convert to fraction form
   65,906.19/90,941.40 = 37,215.18/x
3. Step 3: Cross multiply
   65,906.19x = 90,941.40 × 37,215.18
4. Step 4: Simplify right side
   65,906.19x = 3,384,400,570.45
5. Step 5: Solve for x
   x = 3,384,400,570.45/65,906.19
6. Step 6: Final answer
   x = 51,351.79