Finding the Fourth Proportional to 108,507.15, 149,687.06 and 70,255.71

Step by Step Solution

1. Step 1: Write the proportion equation
   108,507.15 : 149,687.06 = 70,255.71 : x
2. Step 2: Convert to fraction form
   108,507.15/149,687.06 = 70,255.71/x
3. Step 3: Cross multiply
   108,507.15x = 149,687.06 × 70,255.71
4. Step 4: Simplify right side
   108,507.15x = 10,516,370,326.83
5. Step 5: Solve for x
   x = 10,516,370,326.83/108,507.15
6. Step 6: Final answer
   x = 96,918.69