Finding the Fourth Proportional to 150,373.72, 207,506.10 and 82,389.88

Step by Step Solution

1. Step 1: Write the proportion equation
   150,373.72 : 207,506.10 = 82,389.88 : x
2. Step 2: Convert to fraction form
   150,373.72/207,506.10 = 82,389.88/x
3. Step 3: Cross multiply
   150,373.72x = 207,506.10 × 82,389.88
4. Step 4: Simplify right side
   150,373.72x = 17,096,402,678.27
5. Step 5: Solve for x
   x = 17,096,402,678.27/150,373.72
6. Step 6: Final answer
   x = 113,692.76