Finding the Fourth Proportional to 139,895.48, 193,049.76 and 79,465.94

Step by Step Solution

1. Step 1: Write the proportion equation
   139,895.48 : 193,049.76 = 79,465.94 : x
2. Step 2: Convert to fraction form
   139,895.48/193,049.76 = 79,465.94/x
3. Step 3: Cross multiply
   139,895.48x = 193,049.76 × 79,465.94
4. Step 4: Simplify right side
   139,895.48x = 15,340,880,645.17
5. Step 5: Solve for x
   x = 15,340,880,645.17/139,895.48
6. Step 6: Final answer
   x = 109,659.59