Finding the Fourth Proportional to 144,991.74, 217,418.59 and 59,589.25

Step by Step Solution

1. Step 1: Write the proportion equation
   144,991.74 : 217,418.59 = 59,589.25 : x
2. Step 2: Convert to fraction form
   144,991.74/217,418.59 = 59,589.25/x
3. Step 3: Cross multiply
   144,991.74x = 217,418.59 × 59,589.25
4. Step 4: Simplify right side
   144,991.74x = 12,955,810,021.64
5. Step 5: Solve for x
   x = 12,955,810,021.64/144,991.74
6. Step 6: Final answer
   x = 89,355.50