Finding the Fourth Proportional to 139,146.62, 192,022.82 and 75,484.87

Step by Step Solution

1. Step 1: Write the proportion equation
   139,146.62 : 192,022.82 = 75,484.87 : x
2. Step 2: Convert to fraction form
   139,146.62/192,022.82 = 75,484.87/x
3. Step 3: Cross multiply
   139,146.62x = 192,022.82 × 75,484.87
4. Step 4: Simplify right side
   139,146.62x = 14,494,817,227.31
5. Step 5: Solve for x
   x = 14,494,817,227.31/139,146.62
6. Step 6: Final answer
   x = 104,169.38