Finding the Fourth Proportional to 144,666.63, 199,454.91 and 99,265.82

Step by Step Solution

1. Step 1: Write the proportion equation
   144,666.63 : 199,454.91 = 99,265.82 : x
2. Step 2: Convert to fraction form
   144,666.63/199,454.91 = 99,265.82/x
3. Step 3: Cross multiply
   144,666.63x = 199,454.91 × 99,265.82
4. Step 4: Simplify right side
   144,666.63x = 19,799,054,196.90
5. Step 5: Solve for x
   x = 19,799,054,196.90/144,666.63
6. Step 6: Final answer
   x = 136,859.86