Finding the Fourth Proportional to 65,372.80, 90,216 and 35,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,372.80 : 90,216 = 35,566.72 : x
2. Step 2: Convert to fraction form
   65,372.80/90,216 = 35,566.72/x
3. Step 3: Cross multiply
   65,372.80x = 90,216 × 35,566.72
4. Step 4: Simplify right side
   65,372.80x = 3,208,687,211.52
5. Step 5: Solve for x
   x = 3,208,687,211.52/65,372.80
6. Step 6: Final answer
   x = 49,082.91