Finding the Fourth Proportional to 137,411.82, 189,585.27 and 76,974.30

Step by Step Solution

1. Step 1: Write the proportion equation
   137,411.82 : 189,585.27 = 76,974.30 : x
2. Step 2: Convert to fraction form
   137,411.82/189,585.27 = 76,974.30/x
3. Step 3: Cross multiply
   137,411.82x = 189,585.27 × 76,974.30
4. Step 4: Simplify right side
   137,411.82x = 14,593,193,448.56
5. Step 5: Solve for x
   x = 14,593,193,448.56/137,411.82
6. Step 6: Final answer
   x = 106,200.42