Finding the Fourth Proportional to 151,383.33, 208,899 and 90,918.05

Step by Step Solution

1. Step 1: Write the proportion equation
   151,383.33 : 208,899 = 90,918.05 : x
2. Step 2: Convert to fraction form
   151,383.33/208,899 = 90,918.05/x
3. Step 3: Cross multiply
   151,383.33x = 208,899 × 90,918.05
4. Step 4: Simplify right side
   151,383.33x = 18,992,688,682.46
5. Step 5: Solve for x
   x = 18,992,688,682.46/151,383.33
6. Step 6: Final answer
   x = 125,460.90