Finding the Fourth Proportional to 123,715.35, 173,668.05 and 123,715.35

Step by Step Solution

1. Step 1: Write the proportion equation
   123,715.35 : 173,668.05 = 123,715.35 : x
2. Step 2: Convert to fraction form
   123,715.35/173,668.05 = 123,715.35/x
3. Step 3: Cross multiply
   123,715.35x = 173,668.05 × 123,715.35
4. Step 4: Simplify right side
   123,715.35x = 21,485,403,589.57
5. Step 5: Solve for x
   x = 21,485,403,589.57/123,715.35
6. Step 6: Final answer
   x = 173,668.05