Finding the Fourth Proportional to 143,159.88, 197,528.82 and 86,570.04

Step by Step Solution

1. Step 1: Write the proportion equation
   143,159.88 : 197,528.82 = 86,570.04 : x
2. Step 2: Convert to fraction form
   143,159.88/197,528.82 = 86,570.04/x
3. Step 3: Cross multiply
   143,159.88x = 197,528.82 × 86,570.04
4. Step 4: Simplify right side
   143,159.88x = 17,100,077,848.55
5. Step 5: Solve for x
   x = 17,100,077,848.55/143,159.88
6. Step 6: Final answer
   x = 119,447.42