Finding the Fourth Proportional to 216,404.82, 298,149.84 and 150,931.08

Step by Step Solution

1. Step 1: Write the proportion equation
   216,404.82 : 298,149.84 = 150,931.08 : x
2. Step 2: Convert to fraction form
   216,404.82/298,149.84 = 150,931.08/x
3. Step 3: Cross multiply
   216,404.82x = 298,149.84 × 150,931.08
4. Step 4: Simplify right side
   216,404.82x = 45,000,077,353.03
5. Step 5: Solve for x
   x = 45,000,077,353.03/216,404.82
6. Step 6: Final answer
   x = 207,943.97