Finding the Fourth Proportional to 139,453.48, 192,444.90 and 79,849

Step by Step Solution

1. Step 1: Write the proportion equation
   139,453.48 : 192,444.90 = 79,849 : x
2. Step 2: Convert to fraction form
   139,453.48/192,444.90 = 79,849/x
3. Step 3: Cross multiply
   139,453.48x = 192,444.90 × 79,849
4. Step 4: Simplify right side
   139,453.48x = 15,366,532,820.10
5. Step 5: Solve for x
   x = 15,366,532,820.10/139,453.48
6. Step 6: Final answer
   x = 110,191.10