Finding the Fourth Proportional to 291,105.47, 401,722.37 and 162,043.31

Step by Step Solution

1. Step 1: Write the proportion equation
   291,105.47 : 401,722.37 = 162,043.31 : x
2. Step 2: Convert to fraction form
   291,105.47/401,722.37 = 162,043.31/x
3. Step 3: Cross multiply
   291,105.47x = 401,722.37 × 162,043.31
4. Step 4: Simplify right side
   291,105.47x = 65,096,423,337.60
5. Step 5: Solve for x
   x = 65,096,423,337.60/291,105.47
6. Step 6: Final answer
   x = 223,618.00