Finding the Fourth Proportional to 139,153.37, 192,031.72 and 75,491.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,153.37 : 192,031.72 = 75,491.16 : x
2. Step 2: Convert to fraction form
   139,153.37/192,031.72 = 75,491.16/x
3. Step 3: Cross multiply
   139,153.37x = 192,031.72 × 75,491.16
4. Step 4: Simplify right side
   139,153.37x = 14,496,696,390.75
5. Step 5: Solve for x
   x = 14,496,696,390.75/139,153.37
6. Step 6: Final answer
   x = 104,177.84