Finding the Fourth Proportional to 381,507, 572,362.56 and 132,189

Step by Step Solution

1. Step 1: Write the proportion equation
   381,507 : 572,362.56 = 132,189 : x
2. Step 2: Convert to fraction form
   381,507/572,362.56 = 132,189/x
3. Step 3: Cross multiply
   381,507x = 572,362.56 × 132,189
4. Step 4: Simplify right side
   381,507x = 75,660,034,443.84
5. Step 5: Solve for x
   x = 75,660,034,443.84/381,507
6. Step 6: Final answer
   x = 198,318.86