Finding the Fourth Proportional to 65,672.12, 90,605.04 and 37,370.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,672.12 : 90,605.04 = 37,370.72 : x
2. Step 2: Convert to fraction form
   65,672.12/90,605.04 = 37,370.72/x
3. Step 3: Cross multiply
   65,672.12x = 90,605.04 × 37,370.72
4. Step 4: Simplify right side
   65,672.12x = 3,385,975,580.43
5. Step 5: Solve for x
   x = 3,385,975,580.43/65,672.12
6. Step 6: Final answer
   x = 51,558.80