Finding the Fourth Proportional to 82,758.56, 124,146.42 and 35,378.65

Step by Step Solution

1. Step 1: Write the proportion equation
   82,758.56 : 124,146.42 = 35,378.65 : x
2. Step 2: Convert to fraction form
   82,758.56/124,146.42 = 35,378.65/x
3. Step 3: Cross multiply
   82,758.56x = 124,146.42 × 35,378.65
4. Step 4: Simplify right side
   82,758.56x = 4,392,133,399.90
5. Step 5: Solve for x
   x = 4,392,133,399.90/82,758.56
6. Step 6: Final answer
   x = 53,071.65