Finding the Fourth Proportional to 381,185.38, 526,098.81 and 211,474.18

Step by Step Solution

1. Step 1: Write the proportion equation
   381,185.38 : 526,098.81 = 211,474.18 : x
2. Step 2: Convert to fraction form
   381,185.38/526,098.81 = 211,474.18/x
3. Step 3: Cross multiply
   381,185.38x = 526,098.81 × 211,474.18
4. Step 4: Simplify right side
   381,185.38x = 111,256,314,443.73
5. Step 5: Solve for x
   x = 111,256,314,443.73/381,185.38
6. Step 6: Final answer
   x = 291,869.31