Finding the Fourth Proportional to 65,411.47, 90,270.62 and 37,119.79

Step by Step Solution

1. Step 1: Write the proportion equation
   65,411.47 : 90,270.62 = 37,119.79 : x
2. Step 2: Convert to fraction form
   65,411.47/90,270.62 = 37,119.79/x
3. Step 3: Cross multiply
   65,411.47x = 90,270.62 × 37,119.79
4. Step 4: Simplify right side
   65,411.47x = 3,350,826,457.57
5. Step 5: Solve for x
   x = 3,350,826,457.57/65,411.47
6. Step 6: Final answer
   x = 51,226.89