Finding the Fourth Proportional to 65,061.74, 89,780.27 and 39,564.56

Step by Step Solution

1. Step 1: Write the proportion equation
   65,061.74 : 89,780.27 = 39,564.56 : x
2. Step 2: Convert to fraction form
   65,061.74/89,780.27 = 39,564.56/x
3. Step 3: Cross multiply
   65,061.74x = 89,780.27 × 39,564.56
4. Step 4: Simplify right side
   65,061.74x = 3,552,116,879.23
5. Step 5: Solve for x
   x = 3,552,116,879.23/65,061.74
6. Step 6: Final answer
   x = 54,596.09