Finding the Fourth Proportional to 139,622.30, 192,679.61 and 75,960.55

Step by Step Solution

1. Step 1: Write the proportion equation
   139,622.30 : 192,679.61 = 75,960.55 : x
2. Step 2: Convert to fraction form
   139,622.30/192,679.61 = 75,960.55/x
3. Step 3: Cross multiply
   139,622.30x = 192,679.61 × 75,960.55
4. Step 4: Simplify right side
   139,622.30x = 14,636,049,437.71
5. Step 5: Solve for x
   x = 14,636,049,437.71/139,622.30
6. Step 6: Final answer
   x = 104,826.02