Finding the Fourth Proportional to 150,626.34, 207,866.43 and 82,642.05

Step by Step Solution

1. Step 1: Write the proportion equation
   150,626.34 : 207,866.43 = 82,642.05 : x
2. Step 2: Convert to fraction form
   150,626.34/207,866.43 = 82,642.05/x
3. Step 3: Cross multiply
   150,626.34x = 207,866.43 × 82,642.05
4. Step 4: Simplify right side
   150,626.34x = 17,178,507,901.38
5. Step 5: Solve for x
   x = 17,178,507,901.38/150,626.34
6. Step 6: Final answer
   x = 114,047.17