Finding the Fourth Proportional to 82,857.08, 124,341.50 and 30,271.88

Step by Step Solution

1. Step 1: Write the proportion equation
   82,857.08 : 124,341.50 = 30,271.88 : x
2. Step 2: Convert to fraction form
   82,857.08/124,341.50 = 30,271.88/x
3. Step 3: Cross multiply
   82,857.08x = 124,341.50 × 30,271.88
4. Step 4: Simplify right side
   82,857.08x = 3,764,050,967.02
5. Step 5: Solve for x
   x = 3,764,050,967.02/82,857.08
6. Step 6: Final answer
   x = 45,428.24