Finding the Fourth Proportional to 105,802.38, 146,075.68 and 65,558.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,802.38 : 146,075.68 = 65,558.84 : x
2. Step 2: Convert to fraction form
   105,802.38/146,075.68 = 65,558.84/x
3. Step 3: Cross multiply
   105,802.38x = 146,075.68 × 65,558.84
4. Step 4: Simplify right side
   105,802.38x = 9,576,552,133.01
5. Step 5: Solve for x
   x = 9,576,552,133.01/105,802.38
6. Step 6: Final answer
   x = 90,513.58