Finding the Fourth Proportional to 105,404.24, 145,491.72 and 69,626

Step by Step Solution

1. Step 1: Write the proportion equation
   105,404.24 : 145,491.72 = 69,626 : x
2. Step 2: Convert to fraction form
   105,404.24/145,491.72 = 69,626/x
3. Step 3: Cross multiply
   105,404.24x = 145,491.72 × 69,626
4. Step 4: Simplify right side
   105,404.24x = 10,130,006,496.72
5. Step 5: Solve for x
   x = 10,130,006,496.72/105,404.24
6. Step 6: Final answer
   x = 96,106.25