Finding the Fourth Proportional to 139,917.57, 193,091.46 and 79,498.46

Step by Step Solution

1. Step 1: Write the proportion equation
   139,917.57 : 193,091.46 = 79,498.46 : x
2. Step 2: Convert to fraction form
   139,917.57/193,091.46 = 79,498.46/x
3. Step 3: Cross multiply
   139,917.57x = 193,091.46 × 79,498.46
4. Step 4: Simplify right side
   139,917.57x = 15,350,473,709.15
5. Step 5: Solve for x
   x = 15,350,473,709.15/139,917.57
6. Step 6: Final answer
   x = 109,710.84