Finding the Fourth Proportional to 295,066.57, 442,491.42 and 105,475.78

Step by Step Solution

1. Step 1: Write the proportion equation
   295,066.57 : 442,491.42 = 105,475.78 : x
2. Step 2: Convert to fraction form
   295,066.57/442,491.42 = 105,475.78/x
3. Step 3: Cross multiply
   295,066.57x = 442,491.42 × 105,475.78
4. Step 4: Simplify right side
   295,066.57x = 46,672,127,667.81
5. Step 5: Solve for x
   x = 46,672,127,667.81/295,066.57
6. Step 6: Final answer
   x = 158,174.91