Finding the Fourth Proportional to 150,109.47, 207,152.73 and 82,125

Step by Step Solution

1. Step 1: Write the proportion equation
   150,109.47 : 207,152.73 = 82,125 : x
2. Step 2: Convert to fraction form
   150,109.47/207,152.73 = 82,125/x
3. Step 3: Cross multiply
   150,109.47x = 207,152.73 × 82,125
4. Step 4: Simplify right side
   150,109.47x = 17,012,417,951.25
5. Step 5: Solve for x
   x = 17,012,417,951.25/150,109.47
6. Step 6: Final answer
   x = 113,333.41