Finding the Fourth Proportional to 65,320.22, 90,142.47 and 37,020.62

Step by Step Solution

1. Step 1: Write the proportion equation
   65,320.22 : 90,142.47 = 37,020.62 : x
2. Step 2: Convert to fraction form
   65,320.22/90,142.47 = 37,020.62/x
3. Step 3: Cross multiply
   65,320.22x = 90,142.47 × 37,020.62
4. Step 4: Simplify right side
   65,320.22x = 3,337,130,127.73
5. Step 5: Solve for x
   x = 3,337,130,127.73/65,320.22
6. Step 6: Final answer
   x = 51,088.78