Finding the Fourth Proportional to 139,807.82, 192,934.76 and 76,145.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,807.82 : 192,934.76 = 76,145.62 : x
2. Step 2: Convert to fraction form
   139,807.82/192,934.76 = 76,145.62/x
3. Step 3: Cross multiply
   139,807.82x = 192,934.76 × 76,145.62
4. Step 4: Simplify right side
   139,807.82x = 14,691,136,846.76
5. Step 5: Solve for x
   x = 14,691,136,846.76/139,807.82
6. Step 6: Final answer
   x = 105,080.94