Finding the Fourth Proportional to 150,107.61, 207,150.03 and 82,123.10

Step by Step Solution

1. Step 1: Write the proportion equation
   150,107.61 : 207,150.03 = 82,123.10 : x
2. Step 2: Convert to fraction form
   150,107.61/207,150.03 = 82,123.10/x
3. Step 3: Cross multiply
   150,107.61x = 207,150.03 × 82,123.10
4. Step 4: Simplify right side
   150,107.61x = 17,011,801,592.94
5. Step 5: Solve for x
   x = 17,011,801,592.94/150,107.61
6. Step 6: Final answer
   x = 113,330.71