Finding the Fourth Proportional to 119,538.77, 164,964.72 and 65,828.78

Step by Step Solution

1. Step 1: Write the proportion equation
   119,538.77 : 164,964.72 = 65,828.78 : x
2. Step 2: Convert to fraction form
   119,538.77/164,964.72 = 65,828.78/x
3. Step 3: Cross multiply
   119,538.77x = 164,964.72 × 65,828.78
4. Step 4: Simplify right side
   119,538.77x = 10,859,426,260.64
5. Step 5: Solve for x
   x = 10,859,426,260.64/119,538.77
6. Step 6: Final answer
   x = 90,844.39