Finding the Fourth Proportional to 139,516.21, 192,528.25 and 79,092.37

Step by Step Solution

1. Step 1: Write the proportion equation
   139,516.21 : 192,528.25 = 79,092.37 : x
2. Step 2: Convert to fraction form
   139,516.21/192,528.25 = 79,092.37/x
3. Step 3: Cross multiply
   139,516.21x = 192,528.25 × 79,092.37
4. Step 4: Simplify right side
   139,516.21x = 15,227,515,584.45
5. Step 5: Solve for x
   x = 15,227,515,584.45/139,516.21
6. Step 6: Final answer
   x = 109,145.14