Finding the Fourth Proportional to 108,290.77, 149,401.61 and 65,279.77

Step by Step Solution

1. Step 1: Write the proportion equation
   108,290.77 : 149,401.61 = 65,279.77 : x
2. Step 2: Convert to fraction form
   108,290.77/149,401.61 = 65,279.77/x
3. Step 3: Cross multiply
   108,290.77x = 149,401.61 × 65,279.77
4. Step 4: Simplify right side
   108,290.77x = 9,752,902,412.03
5. Step 5: Solve for x
   x = 9,752,902,412.03/108,290.77
6. Step 6: Final answer
   x = 90,062.18