Finding the Fourth Proportional to 139,945.15, 193,117.02 and 79,507.41

Step by Step Solution

1. Step 1: Write the proportion equation
   139,945.15 : 193,117.02 = 79,507.41 : x
2. Step 2: Convert to fraction form
   139,945.15/193,117.02 = 79,507.41/x
3. Step 3: Cross multiply
   139,945.15x = 193,117.02 × 79,507.41
4. Step 4: Simplify right side
   139,945.15x = 15,354,233,623.81
5. Step 5: Solve for x
   x = 15,354,233,623.81/139,945.15
6. Step 6: Final answer
   x = 109,716.08