Finding the Fourth Proportional to 89,908.84, 123,769.38 and 77,259.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,908.84 : 123,769.38 = 77,259.88 : x
2. Step 2: Convert to fraction form
   89,908.84/123,769.38 = 77,259.88/x
3. Step 3: Cross multiply
   89,908.84x = 123,769.38 × 77,259.88
4. Step 4: Simplify right side
   89,908.84x = 9,562,407,446.47
5. Step 5: Solve for x
   x = 9,562,407,446.47/89,908.84
6. Step 6: Final answer
   x = 106,356.70