Finding the Fourth Proportional to 82,776.20, 124,182.81 and 30,185.69

Step by Step Solution

1. Step 1: Write the proportion equation
   82,776.20 : 124,182.81 = 30,185.69 : x
2. Step 2: Convert to fraction form
   82,776.20/124,182.81 = 30,185.69/x
3. Step 3: Cross multiply
   82,776.20x = 124,182.81 × 30,185.69
4. Step 4: Simplify right side
   82,776.20x = 3,748,543,185.07
5. Step 5: Solve for x
   x = 3,748,543,185.07/82,776.20
6. Step 6: Final answer
   x = 45,285.28