Finding the Fourth Proportional to 143,142.76, 214,759.50 and 111,660.76

Step by Step Solution

1. Step 1: Write the proportion equation
   143,142.76 : 214,759.50 = 111,660.76 : x
2. Step 2: Convert to fraction form
   143,142.76/214,759.50 = 111,660.76/x
3. Step 3: Cross multiply
   143,142.76x = 214,759.50 × 111,660.76
4. Step 4: Simplify right side
   143,142.76x = 23,980,208,987.22
5. Step 5: Solve for x
   x = 23,980,208,987.22/143,142.76
6. Step 6: Final answer
   x = 167,526.52