Finding the Fourth Proportional to 526,974.96, 789,978.06 and 189,933.12

Step by Step Solution

1. Step 1: Write the proportion equation
   526,974.96 : 789,978.06 = 189,933.12 : x
2. Step 2: Convert to fraction form
   526,974.96/789,978.06 = 189,933.12/x
3. Step 3: Cross multiply
   526,974.96x = 789,978.06 × 189,933.12
4. Step 4: Simplify right side
   526,974.96x = 150,042,997,667.35
5. Step 5: Solve for x
   x = 150,042,997,667.35/526,974.96
6. Step 6: Final answer
   x = 284,725.10