Finding the Fourth Proportional to 355,843.82, 533,681.89 and 131,082.18

Step by Step Solution

1. Step 1: Write the proportion equation
   355,843.82 : 533,681.89 = 131,082.18 : x
2. Step 2: Convert to fraction form
   355,843.82/533,681.89 = 131,082.18/x
3. Step 3: Cross multiply
   355,843.82x = 533,681.89 × 131,082.18
4. Step 4: Simplify right side
   355,843.82x = 69,956,185,567.72
5. Step 5: Solve for x
   x = 69,956,185,567.72/355,843.82
6. Step 6: Final answer
   x = 196,592.39