Finding the Fourth Proportional to 223,983.05, 309,096.60 and 123,381.05

Step by Step Solution

1. Step 1: Write the proportion equation
   223,983.05 : 309,096.60 = 123,381.05 : x
2. Step 2: Convert to fraction form
   223,983.05/309,096.60 = 123,381.05/x
3. Step 3: Cross multiply
   223,983.05x = 309,096.60 × 123,381.05
4. Step 4: Simplify right side
   223,983.05x = 38,136,663,059.43
5. Step 5: Solve for x
   x = 38,136,663,059.43/223,983.05
6. Step 6: Final answer
   x = 170,265.84