Finding the Fourth Proportional to 139,946.34, 193,118.66 and 79,508.59

Step by Step Solution

1. Step 1: Write the proportion equation
   139,946.34 : 193,118.66 = 79,508.59 : x
2. Step 2: Convert to fraction form
   139,946.34/193,118.66 = 79,508.59/x
3. Step 3: Cross multiply
   139,946.34x = 193,118.66 × 79,508.59
4. Step 4: Simplify right side
   139,946.34x = 15,354,592,359.29
5. Step 5: Solve for x
   x = 15,354,592,359.29/139,946.34
6. Step 6: Final answer
   x = 109,717.71