Finding the Fourth Proportional to 291,019.05, 401,609.61 and 163,693.53

Step by Step Solution

1. Step 1: Write the proportion equation
   291,019.05 : 401,609.61 = 163,693.53 : x
2. Step 2: Convert to fraction form
   291,019.05/401,609.61 = 163,693.53/x
3. Step 3: Cross multiply
   291,019.05x = 401,609.61 × 163,693.53
4. Step 4: Simplify right side
   291,019.05x = 65,740,894,742.82
5. Step 5: Solve for x
   x = 65,740,894,742.82/291,019.05
6. Step 6: Final answer
   x = 225,898.94