Finding the Fourth Proportional to 144,773.32, 199,884.84 and 90,408.56

Step by Step Solution

1. Step 1: Write the proportion equation
   144,773.32 : 199,884.84 = 90,408.56 : x
2. Step 2: Convert to fraction form
   144,773.32/199,884.84 = 90,408.56/x
3. Step 3: Cross multiply
   144,773.32x = 199,884.84 × 90,408.56
4. Step 4: Simplify right side
   144,773.32x = 18,071,300,550.23
5. Step 5: Solve for x
   x = 18,071,300,550.23/144,773.32
6. Step 6: Final answer
   x = 124,824.80