Finding the Fourth Proportional to 150,347, 207,485.34 and 83,279

Step by Step Solution

1. Step 1: Write the proportion equation
   150,347 : 207,485.34 = 83,279 : x
2. Step 2: Convert to fraction form
   150,347/207,485.34 = 83,279/x
3. Step 3: Cross multiply
   150,347x = 207,485.34 × 83,279
4. Step 4: Simplify right side
   150,347x = 17,279,171,629.86
5. Step 5: Solve for x
   x = 17,279,171,629.86/150,347
6. Step 6: Final answer
   x = 114,928.61