Finding the Fourth Proportional to 105,708.42, 145,884.42 and 69,835.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105,708.42 : 145,884.42 = 69,835.59 : x
2. Step 2: Convert to fraction form
   105,708.42/145,884.42 = 69,835.59/x
3. Step 3: Cross multiply
   105,708.42x = 145,884.42 × 69,835.59
4. Step 4: Simplify right side
   105,708.42x = 10,187,924,542.51
5. Step 5: Solve for x
   x = 10,187,924,542.51/105,708.42
6. Step 6: Final answer
   x = 96,377.61