Finding the Fourth Proportional to 105,426.22, 145,576.84 and 75,303.94

Step by Step Solution

1. Step 1: Write the proportion equation
   105,426.22 : 145,576.84 = 75,303.94 : x
2. Step 2: Convert to fraction form
   105,426.22/145,576.84 = 75,303.94/x
3. Step 3: Cross multiply
   105,426.22x = 145,576.84 × 75,303.94
4. Step 4: Simplify right side
   105,426.22x = 10,962,509,624.75
5. Step 5: Solve for x
   x = 10,962,509,624.75/105,426.22
6. Step 6: Final answer
   x = 103,982.76