Finding the Fourth Proportional to 137,162.37, 189,276.42 and 76,721.32

Step by Step Solution

1. Step 1: Write the proportion equation
   137,162.37 : 189,276.42 = 76,721.32 : x
2. Step 2: Convert to fraction form
   137,162.37/189,276.42 = 76,721.32/x
3. Step 3: Cross multiply
   137,162.37x = 189,276.42 × 76,721.32
4. Step 4: Simplify right side
   137,162.37x = 14,521,536,787.27
5. Step 5: Solve for x
   x = 14,521,536,787.27/137,162.37
6. Step 6: Final answer
   x = 105,871.14