Finding the Fourth Proportional to 119,396.58, 164,760.78 and 65,672.88

Step by Step Solution

1. Step 1: Write the proportion equation
   119,396.58 : 164,760.78 = 65,672.88 : x
2. Step 2: Convert to fraction form
   119,396.58/164,760.78 = 65,672.88/x
3. Step 3: Cross multiply
   119,396.58x = 164,760.78 × 65,672.88
4. Step 4: Simplify right side
   119,396.58x = 10,820,314,933.65
5. Step 5: Solve for x
   x = 10,820,314,933.65/119,396.58
6. Step 6: Final answer
   x = 90,625.00