Finding the Fourth Proportional to 65,174.73, 89,955.17 and 39,689.52

Step by Step Solution

1. Step 1: Write the proportion equation
   65,174.73 : 89,955.17 = 39,689.52 : x
2. Step 2: Convert to fraction form
   65,174.73/89,955.17 = 39,689.52/x
3. Step 3: Cross multiply
   65,174.73x = 89,955.17 × 39,689.52
4. Step 4: Simplify right side
   65,174.73x = 3,570,277,518.82
5. Step 5: Solve for x
   x = 3,570,277,518.82/65,174.73
6. Step 6: Final answer
   x = 54,780.09