Finding the Fourth Proportional to 65,983.98, 91,062.72 and 37,689.06

Step by Step Solution

1. Step 1: Write the proportion equation
   65,983.98 : 91,062.72 = 37,689.06 : x
2. Step 2: Convert to fraction form
   65,983.98/91,062.72 = 37,689.06/x
3. Step 3: Cross multiply
   65,983.98x = 91,062.72 × 37,689.06
4. Step 4: Simplify right side
   65,983.98x = 3,432,068,317.84
5. Step 5: Solve for x
   x = 3,432,068,317.84/65,983.98
6. Step 6: Final answer
   x = 52,013.66