Finding the Fourth Proportional to 65,311.68, 90,131.16 and 37,016.76

Step by Step Solution

1. Step 1: Write the proportion equation
   65,311.68 : 90,131.16 = 37,016.76 : x
2. Step 2: Convert to fraction form
   65,311.68/90,131.16 = 37,016.76/x
3. Step 3: Cross multiply
   65,311.68x = 90,131.16 × 37,016.76
4. Step 4: Simplify right side
   65,311.68x = 3,336,363,518.24
5. Step 5: Solve for x
   x = 3,336,363,518.24/65,311.68
6. Step 6: Final answer
   x = 51,083.72