Finding the Fourth Proportional to 105,384.46, 145,364.06 and 73,541.74

Step by Step Solution

1. Step 1: Write the proportion equation
   105,384.46 : 145,364.06 = 73,541.74 : x
2. Step 2: Convert to fraction form
   105,384.46/145,364.06 = 73,541.74/x
3. Step 3: Cross multiply
   105,384.46x = 145,364.06 × 73,541.74
4. Step 4: Simplify right side
   105,384.46x = 10,690,325,905.86
5. Step 5: Solve for x
   x = 10,690,325,905.86/105,384.46
6. Step 6: Final answer
   x = 101,441.20