Finding the Fourth Proportional to 123,656.41, 170,667.17 and 69,958.09

Step by Step Solution

1. Step 1: Write the proportion equation
   123,656.41 : 170,667.17 = 69,958.09 : x
2. Step 2: Convert to fraction form
   123,656.41/170,667.17 = 69,958.09/x
3. Step 3: Cross multiply
   123,656.41x = 170,667.17 × 69,958.09
4. Step 4: Simplify right side
   123,656.41x = 11,939,549,238.91
5. Step 5: Solve for x
   x = 11,939,549,238.91/123,656.41
6. Step 6: Final answer
   x = 96,554.23