Finding the Fourth Proportional to 215,574.84, 297,496.37 and 123,709.10

Step by Step Solution

1. Step 1: Write the proportion equation
   215,574.84 : 297,496.37 = 123,709.10 : x
2. Step 2: Convert to fraction form
   215,574.84/297,496.37 = 123,709.10/x
3. Step 3: Cross multiply
   215,574.84x = 297,496.37 × 123,709.10
4. Step 4: Simplify right side
   215,574.84x = 36,803,007,007.76
5. Step 5: Solve for x
   x = 36,803,007,007.76/215,574.84
6. Step 6: Final answer
   x = 170,720.33