Finding the Fourth Proportional to 150,783.98, 208,082.16 and 82,790.16

Step by Step Solution

1. Step 1: Write the proportion equation
   150,783.98 : 208,082.16 = 82,790.16 : x
2. Step 2: Convert to fraction form
   150,783.98/208,082.16 = 82,790.16/x
3. Step 3: Cross multiply
   150,783.98x = 208,082.16 × 82,790.16
4. Step 4: Simplify right side
   150,783.98x = 17,227,155,319.55
5. Step 5: Solve for x
   x = 17,227,155,319.55/150,783.98
6. Step 6: Final answer
   x = 114,250.57