Finding the Fourth Proportional to 223,956.34, 309,059.70 and 123,354.34

Step by Step Solution

1. Step 1: Write the proportion equation
   223,956.34 : 309,059.70 = 123,354.34 : x
2. Step 2: Convert to fraction form
   223,956.34/309,059.70 = 123,354.34/x
3. Step 3: Cross multiply
   223,956.34x = 309,059.70 × 123,354.34
4. Step 4: Simplify right side
   223,956.34x = 38,123,855,314.10
5. Step 5: Solve for x
   x = 38,123,855,314.10/223,956.34
6. Step 6: Final answer
   x = 170,228.96