Finding the Fourth Proportional to 65,093.70, 89,814.72 and 39,613.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,093.70 : 89,814.72 = 39,613.38 : x
2. Step 2: Convert to fraction form
   65,093.70/89,814.72 = 39,613.38/x
3. Step 3: Cross multiply
   65,093.70x = 89,814.72 × 39,613.38
4. Step 4: Simplify right side
   65,093.70x = 3,557,864,632.95
5. Step 5: Solve for x
   x = 3,557,864,632.95/65,093.70
6. Step 6: Final answer
   x = 54,657.59