Finding the Fourth Proportional to 105,404.49, 145,492.07 and 69,626.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,404.49 : 145,492.07 = 69,626.25 : x
2. Step 2: Convert to fraction form
   105,404.49/145,492.07 = 69,626.25/x
3. Step 3: Cross multiply
   105,404.49x = 145,492.07 × 69,626.25
4. Step 4: Simplify right side
   105,404.49x = 10,130,066,890.71
5. Step 5: Solve for x
   x = 10,130,066,890.71/105,404.49
6. Step 6: Final answer
   x = 96,106.60