Finding the Fourth Proportional to 82,475.02, 123,711.45 and 20,146.06

Step by Step Solution

1. Step 1: Write the proportion equation
   82,475.02 : 123,711.45 = 20,146.06 : x
2. Step 2: Convert to fraction form
   82,475.02/123,711.45 = 20,146.06/x
3. Step 3: Cross multiply
   82,475.02x = 123,711.45 × 20,146.06
4. Step 4: Simplify right side
   82,475.02x = 2,492,298,294.39
5. Step 5: Solve for x
   x = 2,492,298,294.39/82,475.02
6. Step 6: Final answer
   x = 30,218.83