Finding the Fourth Proportional to 105,377.14, 145,433.73 and 69,109.08

Step by Step Solution

1. Step 1: Write the proportion equation
   105,377.14 : 145,433.73 = 69,109.08 : x
2. Step 2: Convert to fraction form
   105,377.14/145,433.73 = 69,109.08/x
3. Step 3: Cross multiply
   105,377.14x = 145,433.73 × 69,109.08
4. Step 4: Simplify right side
   105,377.14x = 10,050,791,281.27
5. Step 5: Solve for x
   x = 10,050,791,281.27/105,377.14
6. Step 6: Final answer
   x = 95,379.24