Finding the Fourth Proportional to 143,049.35, 214,612.72 and 43,212.80

Step by Step Solution

1. Step 1: Write the proportion equation
   143,049.35 : 214,612.72 = 43,212.80 : x
2. Step 2: Convert to fraction form
   143,049.35/214,612.72 = 43,212.80/x
3. Step 3: Cross multiply
   143,049.35x = 214,612.72 × 43,212.80
4. Step 4: Simplify right side
   143,049.35x = 9,274,015,365.72
5. Step 5: Solve for x
   x = 9,274,015,365.72/143,049.35
6. Step 6: Final answer
   x = 64,830.88