Finding the Fourth Proportional to 139,601.26, 192,649.82 and 79,152.58

Step by Step Solution

1. Step 1: Write the proportion equation
   139,601.26 : 192,649.82 = 79,152.58 : x
2. Step 2: Convert to fraction form
   139,601.26/192,649.82 = 79,152.58/x
3. Step 3: Cross multiply
   139,601.26x = 192,649.82 × 79,152.58
4. Step 4: Simplify right side
   139,601.26x = 15,248,730,289.54
5. Step 5: Solve for x
   x = 15,248,730,289.54/139,601.26
6. Step 6: Final answer
   x = 109,230.61