Finding the Fourth Proportional to 212,443.38, 293,160.60 and 116,931.69

Step by Step Solution

1. Step 1: Write the proportion equation
   212,443.38 : 293,160.60 = 116,931.69 : x
2. Step 2: Convert to fraction form
   212,443.38/293,160.60 = 116,931.69/x
3. Step 3: Cross multiply
   212,443.38x = 293,160.60 × 116,931.69
4. Step 4: Simplify right side
   212,443.38x = 34,279,764,399.41
5. Step 5: Solve for x
   x = 34,279,764,399.41/212,443.38
6. Step 6: Final answer
   x = 161,359.53