Finding the Fourth Proportional to 143,156.86, 197,556.82 and 79,494.65

Step by Step Solution

1. Step 1: Write the proportion equation
   143,156.86 : 197,556.82 = 79,494.65 : x
2. Step 2: Convert to fraction form
   143,156.86/197,556.82 = 79,494.65/x
3. Step 3: Cross multiply
   143,156.86x = 197,556.82 × 79,494.65
4. Step 4: Simplify right side
   143,156.86x = 15,704,709,815.33
5. Step 5: Solve for x
   x = 15,704,709,815.33/143,156.86
6. Step 6: Final answer
   x = 109,702.81