Finding the Fourth Proportional to 150,123.34, 207,165.54 and 89,680.42

Step by Step Solution

1. Step 1: Write the proportion equation
   150,123.34 : 207,165.54 = 89,680.42 : x
2. Step 2: Convert to fraction form
   150,123.34/207,165.54 = 89,680.42/x
3. Step 3: Cross multiply
   150,123.34x = 207,165.54 × 89,680.42
4. Step 4: Simplify right side
   150,123.34x = 18,578,692,636.73
5. Step 5: Solve for x
   x = 18,578,692,636.73/150,123.34
6. Step 6: Final answer
   x = 123,756.19