Finding the Fourth Proportional to 109,067.40, 150,510.42 and 71,340.84

Step by Step Solution

1. Step 1: Write the proportion equation
   109,067.40 : 150,510.42 = 71,340.84 : x
2. Step 2: Convert to fraction form
   109,067.40/150,510.42 = 71,340.84/x
3. Step 3: Cross multiply
   109,067.40x = 150,510.42 × 71,340.84
4. Step 4: Simplify right side
   109,067.40x = 10,737,539,791.55
5. Step 5: Solve for x
   x = 10,737,539,791.55/109,067.40
6. Step 6: Final answer
   x = 98,448.66