Finding the Fourth Proportional to 65,448, 90,318.42 and 37,158.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,448 : 90,318.42 = 37,158.12 : x
2. Step 2: Convert to fraction form
   65,448/90,318.42 = 37,158.12/x
3. Step 3: Cross multiply
   65,448x = 90,318.42 × 37,158.12
4. Step 4: Simplify right side
   65,448x = 3,356,062,688.57
5. Step 5: Solve for x
   x = 3,356,062,688.57/65,448
6. Step 6: Final answer
   x = 51,278.31