Finding the Fourth Proportional to 143,139.08, 213,744.73 and 116,895.88

Step by Step Solution

1. Step 1: Write the proportion equation
   143,139.08 : 213,744.73 = 116,895.88 : x
2. Step 2: Convert to fraction form
   143,139.08/213,744.73 = 116,895.88/x
3. Step 3: Cross multiply
   143,139.08x = 213,744.73 × 116,895.88
4. Step 4: Simplify right side
   143,139.08x = 24,985,878,308.71
5. Step 5: Solve for x
   x = 24,985,878,308.71/143,139.08
6. Step 6: Final answer
   x = 174,556.65