Finding the Fourth Proportional to 107,485.25, 148,396.05 and 69,258.31

Step by Step Solution

1. Step 1: Write the proportion equation
   107,485.25 : 148,396.05 = 69,258.31 : x
2. Step 2: Convert to fraction form
   107,485.25/148,396.05 = 69,258.31/x
3. Step 3: Cross multiply
   107,485.25x = 148,396.05 × 69,258.31
4. Step 4: Simplify right side
   107,485.25x = 10,277,659,262.69
5. Step 5: Solve for x
   x = 10,277,659,262.69/107,485.25
6. Step 6: Final answer
   x = 95,619.26