Finding the Fourth Proportional to 143,222.76, 214,906.86 and 64,320.84

Step by Step Solution

1. Step 1: Write the proportion equation
   143,222.76 : 214,906.86 = 64,320.84 : x
2. Step 2: Convert to fraction form
   143,222.76/214,906.86 = 64,320.84/x
3. Step 3: Cross multiply
   143,222.76x = 214,906.86 × 64,320.84
4. Step 4: Simplify right side
   143,222.76x = 13,822,989,756.96
5. Step 5: Solve for x
   x = 13,822,989,756.96/143,222.76
6. Step 6: Final answer
   x = 96,513.92