Finding the Fourth Proportional to 144,323.58, 199,037.55 and 90,613.59

Step by Step Solution

1. Step 1: Write the proportion equation
   144,323.58 : 199,037.55 = 90,613.59 : x
2. Step 2: Convert to fraction form
   144,323.58/199,037.55 = 90,613.59/x
3. Step 3: Cross multiply
   144,323.58x = 199,037.55 × 90,613.59
4. Step 4: Simplify right side
   144,323.58x = 18,035,506,950.30
5. Step 5: Solve for x
   x = 18,035,506,950.30/144,323.58
6. Step 6: Final answer
   x = 124,965.77