Finding the Fourth Proportional to 123,411.96, 170,181.18 and 105,566.04

Step by Step Solution

1. Step 1: Write the proportion equation
   123,411.96 : 170,181.18 = 105,566.04 : x
2. Step 2: Convert to fraction form
   123,411.96/170,181.18 = 105,566.04/x
3. Step 3: Cross multiply
   123,411.96x = 170,181.18 × 105,566.04
4. Step 4: Simplify right side
   123,411.96x = 17,965,353,255.13
5. Step 5: Solve for x
   x = 17,965,353,255.13/123,411.96
6. Step 6: Final answer
   x = 145,572.22