Finding the Fourth Proportional to 139,776.63, 192,879.59 and 79,349.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,776.63 : 192,879.59 = 79,349.82 : x
2. Step 2: Convert to fraction form
   139,776.63/192,879.59 = 79,349.82/x
3. Step 3: Cross multiply
   139,776.63x = 192,879.59 × 79,349.82
4. Step 4: Simplify right side
   139,776.63x = 15,304,960,748.17
5. Step 5: Solve for x
   x = 15,304,960,748.17/139,776.63
6. Step 6: Final answer
   x = 109,495.85