Finding the Fourth Proportional to 123,656.91, 170,667.86 and 69,958.59

Step by Step Solution

1. Step 1: Write the proportion equation
   123,656.91 : 170,667.86 = 69,958.59 : x
2. Step 2: Convert to fraction form
   123,656.91/170,667.86 = 69,958.59/x
3. Step 3: Cross multiply
   123,656.91x = 170,667.86 × 69,958.59
4. Step 4: Simplify right side
   123,656.91x = 11,939,682,494.12
5. Step 5: Solve for x
   x = 11,939,682,494.12/123,656.91
6. Step 6: Final answer
   x = 96,554.92