Finding the Fourth Proportional to 150,742.28, 208,013.94 and 83,669

Step by Step Solution

1. Step 1: Write the proportion equation
   150,742.28 : 208,013.94 = 83,669 : x
2. Step 2: Convert to fraction form
   150,742.28/208,013.94 = 83,669/x
3. Step 3: Cross multiply
   150,742.28x = 208,013.94 × 83,669
4. Step 4: Simplify right side
   150,742.28x = 17,404,318,345.86
5. Step 5: Solve for x
   x = 17,404,318,345.86/150,742.28
6. Step 6: Final answer
   x = 115,457.44