Finding the Fourth Proportional to 65,682.50, 90,641.86 and 35,874.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,682.50 : 90,641.86 = 35,874.50 : x
2. Step 2: Convert to fraction form
   65,682.50/90,641.86 = 35,874.50/x
3. Step 3: Cross multiply
   65,682.50x = 90,641.86 × 35,874.50
4. Step 4: Simplify right side
   65,682.50x = 3,251,731,406.57
5. Step 5: Solve for x
   x = 3,251,731,406.57/65,682.50
6. Step 6: Final answer
   x = 49,506.82