Finding the Fourth Proportional to 123,668.72, 170,647.32 and 73,358

Step by Step Solution

1. Step 1: Write the proportion equation
   123,668.72 : 170,647.32 = 73,358 : x
2. Step 2: Convert to fraction form
   123,668.72/170,647.32 = 73,358/x
3. Step 3: Cross multiply
   123,668.72x = 170,647.32 × 73,358
4. Step 4: Simplify right side
   123,668.72x = 12,518,346,100.56
5. Step 5: Solve for x
   x = 12,518,346,100.56/123,668.72
6. Step 6: Final answer
   x = 101,224.84