Finding the Fourth Proportional to 65,689.31, 90,651.35 and 37,395

Step by Step Solution

1. Step 1: Write the proportion equation
   65,689.31 : 90,651.35 = 37,395 : x
2. Step 2: Convert to fraction form
   65,689.31/90,651.35 = 37,395/x
3. Step 3: Cross multiply
   65,689.31x = 90,651.35 × 37,395
4. Step 4: Simplify right side
   65,689.31x = 3,389,907,326.74
5. Step 5: Solve for x
   x = 3,389,907,326.74/65,689.31
6. Step 6: Final answer
   x = 51,605.16