Finding the Fourth Proportional to 139,827.42, 192,965.58 and 76,169.34

Step by Step Solution

1. Step 1: Write the proportion equation
   139,827.42 : 192,965.58 = 76,169.34 : x
2. Step 2: Convert to fraction form
   139,827.42/192,965.58 = 76,169.34/x
3. Step 3: Cross multiply
   139,827.42x = 192,965.58 × 76,169.34
4. Step 4: Simplify right side
   139,827.42x = 14,698,060,871.32
5. Step 5: Solve for x
   x = 14,698,060,871.32/139,827.42
6. Step 6: Final answer
   x = 105,115.73