Finding the Fourth Proportional to 309,889.98, 465,031.59 and 132,398.34

Step by Step Solution

1. Step 1: Write the proportion equation
   309,889.98 : 465,031.59 = 132,398.34 : x
2. Step 2: Convert to fraction form
   309,889.98/465,031.59 = 132,398.34/x
3. Step 3: Cross multiply
   309,889.98x = 465,031.59 × 132,398.34
4. Step 4: Simplify right side
   309,889.98x = 61,569,410,563.56
5. Step 5: Solve for x
   x = 61,569,410,563.56/309,889.98
6. Step 6: Final answer
   x = 198,681.51