Finding the Fourth Proportional to 150,300.06, 207,417.21 and 82,319.90

Step by Step Solution

1. Step 1: Write the proportion equation
   150,300.06 : 207,417.21 = 82,319.90 : x
2. Step 2: Convert to fraction form
   150,300.06/207,417.21 = 82,319.90/x
3. Step 3: Cross multiply
   150,300.06x = 207,417.21 × 82,319.90
4. Step 4: Simplify right side
   150,300.06x = 17,074,562,639.69
5. Step 5: Solve for x
   x = 17,074,562,639.69/150,300.06
6. Step 6: Final answer
   x = 113,603.17