Finding the Fourth Proportional to 194,789.10, 291,982.05 and 105,854.70

Step by Step Solution

1. Step 1: Write the proportion equation
   194,789.10 : 291,982.05 = 105,854.70 : x
2. Step 2: Convert to fraction form
   194,789.10/291,982.05 = 105,854.70/x
3. Step 3: Cross multiply
   194,789.10x = 291,982.05 × 105,854.70
4. Step 4: Simplify right side
   194,789.10x = 30,907,672,308.14
5. Step 5: Solve for x
   x = 30,907,672,308.14/194,789.10
6. Step 6: Final answer
   x = 158,672.49