Finding the Fourth Proportional to 139,725.10, 192,819.67 and 76,062.74

Step by Step Solution

1. Step 1: Write the proportion equation
   139,725.10 : 192,819.67 = 76,062.74 : x
2. Step 2: Convert to fraction form
   139,725.10/192,819.67 = 76,062.74/x
3. Step 3: Cross multiply
   139,725.10x = 192,819.67 × 76,062.74
4. Step 4: Simplify right side
   139,725.10x = 14,666,392,426.10
5. Step 5: Solve for x
   x = 14,666,392,426.10/139,725.10
6. Step 6: Final answer
   x = 104,966.06