Finding the Fourth Proportional to 65,295.91, 90,128.87 and 37,020.43

Step by Step Solution

1. Step 1: Write the proportion equation
   65,295.91 : 90,128.87 = 37,020.43 : x
2. Step 2: Convert to fraction form
   65,295.91/90,128.87 = 37,020.43/x
3. Step 3: Cross multiply
   65,295.91x = 90,128.87 × 37,020.43
4. Step 4: Simplify right side
   65,295.91x = 3,336,609,522.81
5. Step 5: Solve for x
   x = 3,336,609,522.81/65,295.91
6. Step 6: Final answer
   x = 51,099.82