Finding the Fourth Proportional to 139,725.86, 192,848.25 and 79,302.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,725.86 : 192,848.25 = 79,302.16 : x
2. Step 2: Convert to fraction form
   139,725.86/192,848.25 = 79,302.16/x
3. Step 3: Cross multiply
   139,725.86x = 192,848.25 × 79,302.16
4. Step 4: Simplify right side
   139,725.86x = 15,293,282,777.22
5. Step 5: Solve for x
   x = 15,293,282,777.22/139,725.86
6. Step 6: Final answer
   x = 109,452.06