Finding the Fourth Proportional to 144,589.86, 216,878.41 and 39,408.83

Step by Step Solution

1. Step 1: Write the proportion equation
   144,589.86 : 216,878.41 = 39,408.83 : x
2. Step 2: Convert to fraction form
   144,589.86/216,878.41 = 39,408.83/x
3. Step 3: Cross multiply
   144,589.86x = 216,878.41 × 39,408.83
4. Step 4: Simplify right side
   144,589.86x = 8,546,924,168.52
5. Step 5: Solve for x
   x = 8,546,924,168.52/144,589.86
6. Step 6: Final answer
   x = 59,111.50