Finding the Fourth Proportional to 65,983.87, 91,058.88 and 37,689.76

Step by Step Solution

1. Step 1: Write the proportion equation
   65,983.87 : 91,058.88 = 37,689.76 : x
2. Step 2: Convert to fraction form
   65,983.87/91,058.88 = 37,689.76/x
3. Step 3: Cross multiply
   65,983.87x = 91,058.88 × 37,689.76
4. Step 4: Simplify right side
   65,983.87x = 3,431,987,333.07
5. Step 5: Solve for x
   x = 3,431,987,333.07/65,983.87
6. Step 6: Final answer
   x = 52,012.52