Finding the Fourth Proportional to 149,692.72, 206,611.36 and 86,067.52

Step by Step Solution

1. Step 1: Write the proportion equation
   149,692.72 : 206,611.36 = 86,067.52 : x
2. Step 2: Convert to fraction form
   149,692.72/206,611.36 = 86,067.52/x
3. Step 3: Cross multiply
   149,692.72x = 206,611.36 × 86,067.52
4. Step 4: Simplify right side
   149,692.72x = 17,782,527,359.03
5. Step 5: Solve for x
   x = 17,782,527,359.03/149,692.72
6. Step 6: Final answer
   x = 118,793.53